Feb 07, 2012 05:00PM

Tiny Primate Communicates Secretly in Ultrasound

The tarsier's high pitch allows him to communicate within his own private channel.

Feb 07, 2012 12:01PM

World's First Animals Were Namibian Sponges

These animal fossils push back the date of the world's first animals another 100 million years.

Feb 06, 2012 12:26PM

Just an Old Jurassic Love Song

The love song of an extinct katydid that lived 165 million years ago has been brought back to life.