16 Aug 2011
17 Mar 2011
As their name implies, male goitred gazelles (Gazella subgutturosa) have a lump, resembling the human Adam’s apple, at the front of their necks. Females of the species have a smaller lump, reflecting their smaller larynx. Goitred gazelles are relatively vocal; they produce both oral and nasal calls. Males emit Read More...
18 Nov 2010
02 Sep 2010
Why has it been so hard for scientists to explain why giraffes (Giraffa camelopardalis) have such long necks? After all it has been almost 140 years since Charles Darwin proposed that competition for food among African browsers led to Read More...