He doesn't even have a head. 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 ...

FOR long we have accepted as well-established and equivalent the five classes of vertebrate animals, but recent zoological research, particularly on the palaeontological side, has modified many ...

Scientists have recently described one of the world’s tiniest vertebrates ... the distinct mating calls of the frog while ...