The vaquita or desert porpoise is in danger. Learn more about this miniature dolphin and find out what is being done to save it.

Mar 21, 2011 - Kelly Dupree

A homoplasy is a feature shared by different organisms that was not present in their most recent common ancestor. Homoplasies demonstrate adaptation in the living world.

Feb 23, 2009 - Thomas Wyatt

More often than not, when a whale or dolphin beaches itself, scientists look at sonar as a possible cause. Is sonar responsible for substantial cetacean deaths?

Aug 18, 2009 - Jason Parent

Throughout their lineage, whales have evolved certain characteristics suited to their habitat.

Feb 18, 2011 - Carly Miller

Sailors believed many different superstitions and carried with them knowledge and charms to help avoid bad luck and encourage good luck, including animals.

Feb 17, 2011 - Bridget Murray

The menopause is not a by-product of a longer life, but has evolved because of its survival benefits: the "grandmother hypothesis" and other theories.

Dec 17, 2011 - Eva Goes

Enter the supersensory, subterranean world of the amphisbaenian, Blanus cinereus, a fascinating and little-known reptile that is neither snake nor lizard.

Mar 11, 2012 - Peter Ashby

You may think social networking is just for people, but dolphins have been doing it as long as we have, and it may be the reason we are both so smart.

Feb 20, 2011 - Sarah Curran-Ragan