A giant panda gave birth to a cub at the US National Zoo, raising hopes for a rare success after a series of false pregnancies and a death.
Aug 24, 2013 in Plants & Animals
Older male nightingales perform faster and more demanding trills than their younger rivals. These findings were published by researchers at the University of Basel and the Netherlands Institute of Ecology in the online edition ...
Aug 12, 2013 in Plants & Animals