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 ...

Research in our group investigates a number of questions central to understanding animal evolution and development: What determines the lifelong regenerative capacity of some animal lineages ? How the ...

The entire vertebrate collection is databased and available electronically at ARCTOS as well as VertNet & GBIF. A considerable portion has georeferenced locality information (GIS latitude, longitude) ...

The Institutional Animal Care and Use Committee (IACUC) is a standing institutional review board established in compliance with the Public Health Service Policy on Humane Care and Use of Laboratory ...

A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.