crushing forces in nature

Spotted hyena Crocuta crocuta with leg bone of giraffe

Green woodpecker Picus viridis anting for parasite removal

Greater Spotted woodpecker Dendrocopos major seeking food.  Using its beak to pry under areas of bark, the woodpecker looks for small insects.

Digestive system of bird using domestic chicken, in diagram format, with close up of gizzard

Bighorn sheep Ovis canadensis fighting, using his horns to charge at a mating rival.