w. o. o. welcome to our code at 19 special on d w.

w. o. o, what secrets lie behind these walls? discover new adventures in 360 degrees. and explore fascinating world heritage sites. d w world heritage 360. get the out now. welcome to the dark side where intelligence agencies are pulling the strings. there was a before 911 and after 911, he says after 911, the clubs came off. were organized crime rules were conglomerates and make their own laws. they invade our private lives through surveillance. hidden opaque, secretive. what is true was saying, it doesn't matter. the only criteria is what we'll hope people. we shed light on the opaque world who's behind benefits. and why are they a threat to whistle opening worlds this week on d, w a? ah, this is d w news line from berlin, nonstarter and red lines in brussels, russia, nato, end their talks with no bra.

welcome to to morrow to day. you'll science show on d, w. o. animals bellow, grunt chatter, o, bog. it's their way of defending their territory combing their fellow creatures or finding partners with them. we humans can't always hear them. bats and whales, for example, emit sounds in the ultrasonic range, but they are not alone. if you go down to a cellar to day, you might be in for a surprise. and if you hear one mouse sprang around to the next, won't be far away. house mice are pack animals rather than lone wolves, and researchers have been investigating their complex social lives. a key point is the secret communication used by the small rodents. mice lay st. marks and similar to bats, they emit sounds, and the ultrasonic range that it's inaudible for humans. to understand more about the so called mouth songs, a research group at the university of veterinary medicine, vienna set up live traps and place where mice aren't. welcome doris nicholas and maria alida marconi, have to check the tramps, regularly, a painstaking exercise. one that's vital for the research. we're wine, madri