Complex neural circuits likely arose independently in birds and mammals, suggesting that vertebrates evolved intelligence ...

which are some of the earliest vertebrates (animals with backbones) in which the mouth is fossilized. Their aim was to answer ...

Among them were the chordates, to which vertebrates (animals with backbones) such as humans belong. What sparked this biological bonanza isn't clear. It may be that oxygen in the atmosphere ...

If Blob had been born with a spine, or backbone, he would have been a vertebrate. If we give Blob some legs and a head then he can start to move about. There are lots of vertebrates in the animal ...

These are believed to be the first animals with backbones that achieved powered ... Family Member Could Have Been The First Flying Vertebrate With Bat-Like Wings first on TwistedSifter.