n. a small, short-tailed, thickset rodent"On land, a polar bear might catch a tiny lemming."
الانزلاق: 2
BLUBBER
n. an insulating layer of fat under the skin of whales and other large marine mammals"Like a snug blanket, this blubber keeps in the heat of the bear's body."
الانزلاق: 3
TUNDRA
n. vast treeless plain near the Arctic Circle where the subsoil is permanently frozen"There are cold, rockly islands and stretches of tundra where no trees grow."