Archive: 03/29/2010

Extreme Weather Impacts Migratory Birds

(PhysOrg.com) -- Every year, hurricanes and droughts wreak havoc on human lives and property around the world. And according to a pair of new NASA-funded studies, migratory birds also experience severe impacts ...

Mar 29, 2010 not rated yet 0

Hyenas' laughter signals deciphered

Acoustic analysis of the 'giggle' sound made by spotted hyenas has revealed that the animals' laughter encodes information about age, dominance and identity. Researchers writing in the open access journal ...

Mar 29, 2010 4 / 5 (1) 0