we are highly intelligent, kai hagar from the university of bon yeah. for a long time in the 20th century, it was believed that the mass extinction was due to volcanic eruptions and the new as they still do today. that what is now india so intensely kind of activity over a long time. the impact on the environment may have included openness, that if occasion, which in turn led to a collapse of ecosystems over a period lasting several 100000 years. but later in the 20th century, scientists on growing evidence of an asteroid impact in modern day, mexico and timelines that impact correlates exactly with the mass extinction. more recent research has indicated what massive consequences it had since in armies. and does that probably blocked out the sun for many years? and research has also reveal deposits of iridium and bro mean around the world dating to precisely that period of time. and the extremely high concentration of these isotopes means they must have been brought to earth via an asteroid. one, yes. so that's why we now believe that while not the soul

we are highly intelligent, kai hagar from the university of bon. yeah. for a long time in the 20th century, it was believed that the mass extinction was due to volcanic eruptions. and the new as they still do today, that what is now india so intensely counting activity over a long time. the impact on the environment may have included openness, that if occasion, which in turn led to a collapse of ecosystems over a period lasting several 100000 years done analysis. but later in the 20th century, scientists on growing evidence of an asteroid impact in modern day, mexico and timelines that impact correlates exactly with the mass extinction. more recent research has indicated what massive consequences it had since in armies and dust, but probably blocked out the sun for many years. and research has also reveal deposits of iridium and bro mean around the world dating to precisely that period of time. and the extremely high concentration of these isotopes means they must have been brought to earth via an asteroid. so that's why we now believe that while not the

we asked paleontologist chi yoga from the university of bon. yeah, then the 3rd doctor, for a long time in the 20th century, it was believed that the mass extinction was due to volcanic eruptions. and the paypal new as they still do today, that what is now india so intense volcanic activity over a long time, the impacts on the environment may have included ocean us edification, which in turn led to a collapse of ecosystems over a period lasting several 100000 years done analysis, but later in the 20th century, scientists and growing evidence of an asteroid impact in modern day, mexico and timelines that impact correlates exactly with the mass extinction. more recent research has indicated what massive consequences it had since in armies and dust, but probably blocked out the sun for many years. already, a modern research has also revealed deposits of iridium and bro mean around the world dating to precisely that period of time. and the extremely high concentration of these isotopes means they must have been brought to earth via an asteroid on i

of sociology aston university in the u. k. long term took her on all things, sport. he thinks the history and government has put itself in an awkward position with such a high profile. bon got morrison, the a prime minister has paid it himself into a bit of a corner now, because on the one hand, if he allows jug which entry into australia, then it's going to kick off in melbourne because this is the most locked down country in the was they have been hardly able to move for the past 2 years, trying to come out locked down. it's funding it's infection rate is spiraling upwards. and so that's saying now if we let junk of it into the country, this is really sacrificing a policy that we've held in place for 2 years and exactly the wrong time in history . on the other hand, if they exclude coverage, then they're going to have a di valued tennis tournament. no medicine is meant to help the sick, but it appears america's health care system need some serious bedside assistance itself. or documentary this asked why is life expectancy fully? and while at the bottom and that makes no sense, you know, born is and is blind to nationalities and you as a merge, we don't have a tendency