Study reveals yunnanozoans as the oldest known stem vertebrates

Scientists have long puzzled over the gap in the fossil record that would explain the evolution from invertebrates to vertebrates. Vertebrates, including fishes, amphibians, reptiles, birds, mammals, and humans, share unique ...

It's official: dogs really do imitate their owners

(PhysOrg.com) -- Scientists studying imitative behavior have found that, just like people, dogs learn quickest by automatic imitation. Apart from the budgerigar, this is the first time automatic imitation has been demonstrated ...

page 3 from 40