Penn State researchers strapped small weights to the legs of growing guinea fowl. As adults, those birds carried extra load without paying any extra energy cost, while their unloaded peers burned 23% more. What might this mean for human kids?
Hummingbird bills — their long, thin beaks — look a little like drinking straws. The frenetic speed at which they get nectar out of flowers and backyard feeders may give the impression that the bills act as straws, too. But... Continue Reading →
Peregrine falcons are built for speed. They’ve been clocked at more than 380 kilometers per hour when diving. This video from Deep Look examines some of the features that make these birds of prey so fast, from the shape of their eyes to... Continue Reading →
Very common and familiar species (as its name indicates it), the European Robin is really the king of the gardens. Rather solitary outside the breeding season, it is very close to us in winter, begging some bread crumbs at the... Continue Reading →