1 abril 2015
Polar bears, increasingly forced on shore due to sea ice loss, may be eating terrestrial foods including berries, birds and eggs, but any nutritional gains are limited to a few individuals and likely cannot compensate for lost opportunities to consume their traditional, lipid-rich prey — ice seals.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o9KTgZZGMTg/150401133025.htm
