Tous les ebooks de Randall W. Davis en PDF et EPUB

Ethology and Behavioral Ecology of Sea Otters and Polar Bears

Anthony M. Pagano , Randall W. Davis

Sea otters and polar bears are carnivorous marine mammals that still resemble their terrestrial ancestors. Compared with Cetacea (whales and dolphins), Sirenia (dugongs and manatees), and Pinnipedia (seals, sea lions, and walrus), they are less adapted for an aquatic...

---

 COMMENCER GRATUITEMENT