at the l.a. zooersay some animals are acting more social. >> if you walk by now in a public space, they come over and they vocalize at you. it's almost like they're like, ooh look, a person. where did everybody go? >> reporter: animal isolation can lead to abnormal animal behavior so enrichment activities are vital. >> how are you? >> reporter: many zoos are putting behind the scenes footage online. viewership of animal camsave so. that gave them wild ideas, to ask for donations along with your clicks to help offset lost revenue caused by the pandemic. if that's not possible for some, there is still a hope. >> that a positive move towards looking at how we interact with the natural world is one of the ngz that comes out of it. >> reporter: jamie yuccas, los angeles. >> and that is the overnight news for this thursday. reporting from the cbs news st ios in washington, i'm jeff pegues. ♪ ♪ captioning sponsored by cbs >> o'donnell: tonight, could it be a medical breakthrough? america's top infectious di

at the l.a. zoomals are acting more social. >> if you walk by now in the public space, they come over and vocalize at you. almost like, oh, look, a person finally. where did nerve go. -- did everybody go? >> reporter: there can be abnormal behavior. so enrichment activities are vital. >> how are you? >> reporter: many zoos are putting behind-the-scenes footage on line. viewership of animal cams have soared. that gave officials a wild idea -- to ask for donations along with your clicks, to help offset lost revenue caused by the pandemic. if that's not possible for some, there's still a hope. >> that a positive move toward looking at how we interact with the natural world is one of the things that comes out of it. >> reporter: for "cbs this morning saturday", jamie yuccas, los angeles. >> we learn so much from animals. certainly now is not the time to turn our backs on them. obviously they're reacting like we are when you talk about the isolation. >> yeah. it's a brilliant move by the zoos to ask for d