Yes and no: It depends on how you classify animals. There are two main classification systems – the Linnaean system which groups organisms by characteristics and the phylogenetics system, which ...

A young girl welcoming you inside a zoo, inside of which are a walrus and a zebra, and a horse Classification is the process of organising living things into categories. These categories help us to ...

Animal testing has become a questionably effective thorn in the side of scientific progress. While it was once our best method, alternative methods are beginning to surpass animal testing in both ...

This is Blob. Blob can't do much, like lift his own head. 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 ...