but the fact that we can derive meaning from these gestures suggest they provided a foundation for our own language. our last common ancestors with bonobos and chimpanzees probably used quite similar gestures. and these gestures may then have gone on to scaffold the evolution of human gesture and human language as we know it now. gorillas, orangutans and other great apes also use some of these same signals. it is something that people who work with these primates tune into every day. gesture is so important to great apes. all of the little ways they need to regulate their social interactions in these amazingly complex social worlds they live in. it's the sort of communicative grease that gets all of that working. these gestures and our abilities to interpret them, the researchers say, sends a scientific message about how our own language evolved. victoria gill, bbc news.

time for a look at the weather, here's ben rich. good afternoon. we had split fortunes temperature wise in the last few days. it has been cold in the south of the uk and another frosty start this morning but temperatures will slowly creep up a little over the next few days. this is aberdeen where yesterday it was close to 16 degrees. really mild in the north of the uk but here temperatures will be dropping away a little so essentially we end up whole in the same boat. things are starting to change because of this cold front, behind that the air is relatively cold so temperatures coming down a little in the north of the uk. this area has been stubborn in the south and will start to get pushed out of the way so we had that

slight rise in temperatures but not just yet. very cold and gloomy in the south and east of england to the rest of the day and then this band of rain and behind that some spells of rain and behind that some spells of sunshine. through tonight we keep some showers in the north of scotland and down the eastern side of england. clear spells developing, most places will be dry and compared with last night it will be less cold. but a bit colder in the north. again we are all in the same boat temperature wise. tomorrow good spells of sunshine, some showers across the eastern side of scotland and into eastern parts of england. many places will be dry and temperatures across the map seven, 9 degrees. a little colder in shetland. on friday for england and wales some areas of fog first thing and some patchy cloud. more cloud in northern ireland and the north west

of scotland ahead of this next frontal system. again temperatures much of a muchness wherever you are and then into the weekend this first frontal system running into high pressure which will keep things mainly dry in the south but further north the next frontal system comes in bringing some rain and also some strong and gusty wind into northern scotland on sunday. gusts of up to 60 miles an hour in places whereas further south the wind much lighter. mainly dry with some sunshine and temperatures wherever you are seven, 10 degrees. a reminder of our top story... germany confirms it will send some of its leopard 2 battle tanks to ukraine — and allow nato allies to do the same. that's all from the bbc news at one — so it's goodbye from me — and on bbc one we nowjoin the bbc�*s news teams where you are.

good afternoon, it's 1.30pm and here's your latest sports news. nine—time champion novak djokovic is into the australian open semifinals, after sweeping aside fifth seed andrey rublev in a ruthless display. despite looking frustrated at times, the serbian channelled his emotions into a ruthless win over his russian opponent in melbourne. djokovic was the only major champion in the men's quarterfinals, and is favourite for the title, as he chases a record—equalling 22nd grand slam. he will play american tommy paul in the last four on friday. magda linette is a name that keeps hitting the headlines in melbourne. the world number 45 has never been beyond the third round of any grand slam in 29 attempts, but her fairytale run continues, she's into the semifinals. she beat karolina pliskova 6—3 7—5 in a fearless display to see off

the two—time major finalist. alfie hewett reached the semifinals of the australian open men's wheelchair singles by beating gordon reid before the british pair made a winning start to the defence of their doubles title. world number one hewett, beat reid 6—2 6—4 to set up a semifinal with takuya miki ofjapan. and it could be manchester united v newcastle meet in february's final, the team that beat the last final they appeared in, the fa cup back in 1999. they play nottingham forest tonight. and let's not forget, united the only english team in contention in four competitions this season. i have to look at my career to win some trophies. and its magnificent, and especially for the fans, it's so great.

and i think the fans here, they have some experience, especially the older ones. but i know it's a period manchester united didn't win trophies and it's too long ago. so we are aware of that fact. and we have to do everything to bring a trophy in. celtic have completed the signing of striker oh hyeon—gyu from south korean club suwon samsung bluewings. the 21—year—old has moved to the scottish premiership leaders for an undisclosed fee after agreeing a five—year contract. celtic manager ange postecoglou says that oh, who has one senior cap for south korea, was "the striker i really wanted and will be a great fit". different sport same outcome. it was a familiar tale of penalty heartbreak for england at the men's hockey world cup in india. their opponents germany coming from behind to win the shoot out and progress to the last four. liam ansell put england 2—0 up with a well—taken short corner, as they led the quarterfinal quite comfortably up until the final two minutes. but the germans came back to score twice and take

the game to penalties. it was ansell under pressure once again in the shoot—out, but this time he missed and germany advance to the semifinals where they will play australia. everton are not for sale, according to their owner farhad moshiri, despite supporter protests against his running of the club. disgruntled fans have called for moshiri and the board of directors to resign in recent weeks, with the club 19th in the premier league. the merseysiders have won just one of their last 1a matches and sacked manager frank lampard on monday. the five franchises for the inaugural women's premier league in india have been sold for £465m. the wpl, which takes place in march, is a women's version of the indian premier league, the world's biggest twenty20 franchise competition. owners of three existing ipl teams, royal challengers bangalore, mumbai indians and delhi capitals, secured the rights for women's franchises.

that's all the sport for now. scientists have found that vulnerable people who've had a third covid vaccine have significantly more protection against the virus than if they'd had just one or two jabs. it's hoped the research will give renewed confidence to those at higher risk of infection, as fiona lamdin reports. during lockdown, sheila had to shield. she has chronic obstructive pulmonary disease. for over two years, she hardly left her home. started getting back to normal and you could hear noises outside and people getting on with their lives, and you were still sort of having to keep inside. it was really difficult. you felt...pushed out and very much alone. her christmas table gathered dust as easter came and went and it still wasn't safe for her to see her family. but now new research shows that even those who are vulnerable are well protected with the booster vaccine. actually, those who are shielding

showed a lesser response, a lower response to vaccination, to others who weren't shielding. as you move from one vaccination to two and from two to three, that changed. and, most markedly, with that third vaccination, the booster vaccination, everybody hit a ceiling in response in their antibodies to sars—cov—z. the study found this booster gives a tenfold increase in our antibodies compared to the first two vaccines. at this vaccination clinic, linda, who has diabetes, is finally getting round to having her booster. because you always worry. i mean, i still wear- masks when i go shopping, so i am overprotective anyway. and i know it's something. we probably got to live with. so it is good news, brilliant news. and after nearly three years... hello, how are you? nice to meet you at last. yeah, please come in. after all this time. yes! today, i've finally

met sheila in person. it's quite surreal, the whole thing. to think i was in for nearly two years in one house, but then, you know, got the dogs. they do answer back. don't you? she was reassured to know since the booster, despite being vulnerable, her antibodies are hitting the same score as everyone else's. a start�*s wonderful. anything that will sort of ease stress and anxiety i think is wonderful. so that is very, very good news. so i can go on holiday then. probably be rather nice to go out for lunch and not have to think about where it is. you know, if there's four walls, how many doors, what the ventilation is like. so itjust be nice to go sort of on the spur of the moment and just be able to go out for lunch. the booster won't stop sheila getting covid, but it means she and others who shielded can look to living a life with a little more confidence. we go on holiday?

fiona lamdin, bbc news. the us presidentjoe biden is urging congress to tighten laws on assault weapons, after several mass shootings in the state of california in the last week. on saturday, 11 people were killed by a gunman in the monterey park area. and on monday, seven former colleagues were killed in half moon bay. our west coast correspondent sophie long reports. shouting. police arresting the farm worker suspected of shooting eight people in california's half moon bay. he is 66—year—old chunli zhao. seven were found dead and an eighth wounded at two agricultural businesses. the only known connection between zhao and his victims is that they may have worked together. this is a devastating tragedy for this community and the families touched by this unspeakable act of violence. it was the fourth mass shooting in california in eight days. another asian—american, 72—year—old huu can tran, is suspected of killing 11 people

and wounding at least nine others in monterey park near los angeles, before shooting himself on saturday. the target of his attack, senior citizens, dancing at the star ballroom during a lunar new year celebration. and this in a state with some of the strictest gun laws in the country. california has led the national debate on gun safety. we've led the nation. we continue to constantly iterate, as we did last year, i signed another half dozen bills, including private right of action to get ghost guns and weapons of mass destruction off the streets. we're up against hard—core zealots and right—wing judges, not just politicians, that are trying to roll back progress. the attack has stunned people in this normally quiet, largely asian—american city. it is particularly devastating for those in the tight—knit ballroom dancing community, who are mourning the loss of family and dear friends. while i felt very lucky i was not

there, i did feel very bad, - because it happened and it happened in such a sad way that _ so many people die. and did you know any of those who died? yeah. a friend of mine, my, died. i'm sorry. paul was referring to 65—year—old my nhan. she was among the first of the 11 killed to be identified. while detectives in california try to determine what motivated these men to carry out the attacks, there are once again calls from people and the president for america to ban assault weapons. sophie long, bbc news, los angeles. classified documents have been found at the home of the former us vice—president mike pence in indiana during a search last week. it's the latest in a series of similar discoveries which began with an fbi raid at donald trump's mar—a—lago property in florida and has more recently seen classified files found

at offices linked to current presidentjoe biden. our north america correspondent david willis has the latest. when mike pence left the white house, he insisted he had not taken any documents with him, but the discovery of classified documents atjoe biden�*s home and former office prompted mike pence's aides to look a little closer and they came across a small number, thought to be about a dozen documents, with classified markings. now, following the discovery of classified documents at donald trump's mar—a—lago home, as well as president biden�*s delaware estate, that has caused some to wonder whether a special prosecutor should be employed to look into the discovery of the documents in the pence household following the appointment of special prosecutor to look into both the biden and the trump cases.

all of this raises the question, of course, how many classified documents are there floating around out there? these matters are taken very seriously at the highest levels of government. the senate intelligence committee, for example, only allows classified documents to leave the building in locked bags. but some here are making the point that maybe there are just too many in circulation. the federal government, every year, renders about a million documents or so classified of varying degrees of secrecy. so maybe, it is thought, there are just too many to keep track of. nonetheless, the fact that some of the former custodians have clearly failed to exactly live up to the standards of care that might be expected of them i think has prompted some other former inhabitants of the white house to maybe go through their own belongings, to see if they too unwittingly took anything away with them.

after weeks of building international pressure, germany has confirmed it will send 1a leopard 2 battle tanks to ukraine... tanks to ukraine. the families of two british aid workers confirm they were killed while attempting to rescue people in eastern ukraine. the prime minister faces questions over the tax affairs of the tory party chairman and former chancellor nadim zahawi. now on bbc news, it's time to take a look at some of the stories making the headlines from our newsrooms across the uk. one of the biggest employers on anglesey, the 2sisters chicken factory, is set to close, with the loss of more than 700 jobs. the company says the plant needs too much investment, and it would be more efficient

to move production to one of its other plants. brendon williams reports. 2sisters bought this chicken factory in 2013, and it's been one of the area's major employers ever since. now, all 730 jobs are at risk. it's one of the company's smallest sites. and 2sisters says its products can be made more efficiently elsewhere. we have identified llangefni as a site that would not fit in our vision of having large scale, efficient, fully integrated factories. and therefore, sadly, we believe llangefni is not sustainable. no matter where you look. it's over 50 years old. it's too small. it lacks space to expand, and also the transport costs are too high. the effect on workers and the wider community here is nothing short of devastating.

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to the problems facing the company and its latest accounts injuly 2021 show it made a £95.5 million loss. 2sisters says it will speak with employees to explore options before making a final decision, but admit the situation is bleak. with continuing uncertainty over whether a new nuclear power plant will be built at wiltshire and the ongoing closure of the menai bridge, it's another chapter of uncertainty for people living here on anglesey. a rising tide of rough sleepers are being helped into homes in nottingham. bbc east midlands has found that well over 700 people were found on the city's streets over the course of last year. one man's told us how he was rehoused after sleeping rough for nearly a decade. our social affairs correspondent, jeremy ball, reports. how do you persuade someone living like this to accept help that could save their life? it's five in the morning.

we're out with meg and theo on their daily street outreach patrol. sorry to wake you, mate. you all right? no—one likes being woken up, but meg needs to check their conscious. this man just want something warm to eat and drink. that's a way to build a relationship to get people off the streets, offering help with everything from housing to benefits or drug treatments. but some simply don't want it. it's not always a choice. there's other factors that come into play, like mental health, some may struggle to go into accommodation. the cost of living crisis has had an impact. those that aren't able to stay with family and friends any more. because there's not enough room in the house, it's too expensive. and someone's called the rough sleeping hotline, after spotting this man behind a church hall. they'll try to find him a room or a hostel place. 57—year—old pops has moved into a scheme called housing first. after nine years on the streets, he's still dependent on alcohol. sojohn�*s giving him intensive support.

if there's an appointment, he'll come with me. half the time, he makes appointments for me. so a hell of a difference, i think. i wouldn't survive another winter out in the streets. horrible. freezing. it's not sleeping in the fridge. they find people sleeping in hidden places like this underground car park. it's desperate, isn't it, that people are. yeah. but if they come and collect the bin, that's somebody potentially going into a crusher, which is horrific. last year, the outreach team helped well over 300 people off the streets and into tenancies or hostels somewhere safe and a roof over their head. smarties lids, an old mobile phone case and a green shield stamp sticker. just some of the decades old plastic rubbish washing up on the beaches of east yorkshire. experts say they're increasingly concerned about the impact of ageing

plastics in the seas. there's even evidence that they're now getting into our food chain. paul murphy reports. the spectacular sight of an east coast winter tide. oh, that's fishing line. yeah. fishing rope. but it brings with it little reminders of a planet damaged by plastic. so they actually think that we only roughly find about 15% of the litter out at sea. picking up the pieces is an endless task. collected in recent months, some of this was thrown away more than 50 years ago. materials like plastics are extremely durable. they take literally hundreds and hundreds of years to break down. so, for example, they think a plastic bottle that you drink out of, it takes roughly 450 years to break down in the sea. so we always collect

whatever we can. it's really a fantastic way to show people what a problem plastics and other materials are in the sea. and everyone always laughs when i say this. but i was born in 1993, and so a lot of this is absolutely older than i am. the litter is bad enough to look at, but the real problem starts when the plastic begins to slowly break down in sea water into tiny particles. microplastics, as they're known, have been found in supermarket shellfish and in human tissue. we know that microplastics are in our diet. _ our own work has looked in lungs and found microplastics deep - inside patients lungs. other studies have found microplastics in blood, . also the liver and several other organs as well. _ so we know now that they get into our bodies. - and in terms of the impacts of that and whether there are any, - we really don't know.

but on the coast at hornsea, they're trying to find solutions. the town wants to be a plastic free community. the motto at this shop is refill, not landfill. customers can shop with us fully | circular, so that they can eitherl bring their own containers or we have containers - for them to borrow. and we do repurpose jars as well, that people donate to us. - so there's no need for landfill at all. l everything goes into the pots - and then comes back around again to us for recycling. a ban on single—use plastics, including cutlery and certain types of polystyrene, comes into force in england this autumn. more and more people are crying out for plastic—free alternatives for less single use products, and we are seeing that change in our behaviour. you know, this needs to be a societal change, to be a societal change. but replacing a material

on which there is such reliance has been a slow process and it could be many years before these tides tides are plastic—free. now it's time for a look at the weather. over the last few days, we have had a real split in our temperature fortunes. northern parts of the uk have been very mild, but further south, it has been really cold. another cold and frosty and foggy start for some this morning. but things are now changing. this frontal system pushing southwards is a cold front. as the name suggests, behind it, the area is relatively cold, but ahead of it, we're actually mixing up the air, we are finally pushing away this wedge of very stubborn cold air that has been affecting southern parts for the last few days. so it is actually turning a little milder across some south—eastern part, as this weather front

works its way through. a band of rain pushing southwards across england and wales. much of it quite light and patchy. behind it, some clear spells but also some showers, particularly in scotland and temperatures tending to even out. so less of a split in our fortunes, generally between 7—9c as we end the day. and overnight, that frontal system clears, clear spells behind. some showers running into eastern parts of scotland and eastern england and it is going to be a relatively chilly night. colder than recent nights in the north of the uk, but not as cold as recent nights down towards the south. we are all in the same boat really for thursday, with some good spells of sunshine, but some showers through eastern scotland, the eastern side of england, where there will also be quite a keen north or north—easterly breeze. but temperatures wherever you look between seven and 9 degrees, so we have lost that split in our temperature fortunes. as we look ahead to friday, there could be some areas of fog around, particularly through england and wales first thing. some patchy cloud but some sunny spells.

perhaps more cloud rolling into northern ireland and north—west scotland through the day ahead of this next frontal system. again, those temperatures for all of us between five and 9 degrees. as we look towards the weekend, this first frontal system pushes southwards and weakens. high pressure generally dominates across the south of the uk, whereas further north, this next frontal system for sunday will bring some outbreaks of rain and some really strong and gusty winds. we could see gales, even severe gales across parts of northern scotland, generally windy across the northern half of the country, whereas further south the winds will be much lighter. there will be a lot of dry weather, some spells of sunshine, often it will be quite cloudy, but temperatures for all of us between seven and 10 degrees.

this is bbc news. the headlines... germany has confirmed it will send some leopard 2 battle tanks to ukraine and will allow other countries to send them as well. translation: we countries to send them as well. translation:— countries to send them as well. translation: ~ , ,, , ~ ., translation: we will supply ukraine with leo ard translation: we will supply ukraine with leapard 2 — translation: we will supply ukraine with leopard 2 main _ translation: we will supply ukraine with leopard 2 main battle _ translation: we will supply ukraine with leopard 2 main battle tanks, - translation: we will supply ukraine with leopard 2 main battle tanks, as. with leopard 2 main battle tanks, as a result of intensive consultation with our allies and international partners. more questions for the prime minister over the tax affairs of the tory party chairman — and former chancellor — nadim zahawi. does the prime minister agree that any politician who seeks to avoid the taxes they owe in this country should not be in charge of people's money.

should not be in charge of people's mone . ,, . ., , should not be in charge of people's mone . ,, . .,, ~ should not be in charge of people's mone . ,, . ~ ., money. since last week, more information — money. since last week, more information has _ money. since last week, more information has come - money. since last week, more| information has come forward, money. since last week, more - information has come forward, and