A newly identified sponge order, Vilesida, produces sterols linked to the oldest-known animal biomarkers, supporting the idea ...

Among the many misconceptions about evolution—“it’s only a theory”; “it works for the good of the species”—one is that evolution generates biological perfection. If only! In “The Evolution of ...

Hal Drakesmith receives funding from Medical Research Council UK and the Bill and Melinda Gates Foundation. Jon Wade does not work for, consult, own shares in or receive funding from any company or ...

hi this is Matt Baker welcome to episode four in my series on The evolutionary tree of life in the first three episodes we covered the animal kingdom including insects fish reptiles birds and mammals ...

CC0 Usage Conditions ApplyClick for more information. To some extent classification is subjective. Taxonomists differ in the relative importance they ascribe to particular characters and in the degree ...