Biological classification conforms perfectly with the patterns of evolutionary relationships evidenced by anatomy, physiology and genetics.

Invertebrates found in Australia in the 1980s do not fit in any known group. ... or phyla. These “little, funny, mushroom-shaped animals ... N. Sea creatures add branch to tree of life ...

The phyla Chordata is defined by the presence of a notochord during development and includes both invertebrate and vertebrate species. Invertebrate members of the phyla chordata (e.g., tunicates ...

They believed modern invertebrates (animals without backbones), fish, ... or phyla, each with its own distinctive body plan. As a separate branch of the tree of life, ...

The evolutionary history of the mock viper, a mildly venomous, widely distributed Asian snake that mimics highly venomous vipers for self-defence, has been solved. The mock viper represents a ...