TUNDRA BIOCENOSIS: biocenosis in the tundra, have the need to keep warm, for this different agencies have different ways to project yourself from cold depending on the temperature regulation. They develop a thick coat and accumulate a large amount of fat. And also some like the reindeer and caribou migrate in very cold seasons. Abundance of acuatic insect, reptiles and anphibians are scarce. ANIMALS: Musk ox (buey almizclero) Caribou (caribú) Norwegian rabbits (conejos noruegos) Salmon Reindeer (reno) Lemmings (leming) Withe bear (oso blanco) Falcon (halcon) Owl (buho)