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mammals造句
271 In mammals, defensins have evolved to have a central function in the host defense properties of granulocytic leukocytes, mucosal surfaces, skin and epithelial. 272 The marine sanctuary on Tria Island was established to protect certain marine mammals. 273 Even within our own class, mammals, roughly 300 new species have been discovered in the first decade of this century—mostly rodents, but also marsupials, a beaked whale and a slew of primates. 274 Any of several piglike hoofed mammals of the family Tayassuidae, found in North, Central, and South America and having long, dark, dense bristles. 275 The Australian short-beaked echidna, a monotreme, is one of the oldest living mammals on earth. 276 Any of various small, principally nocturnal mammals of the order Insectivora, characteristically feeding chiefly on insects and including the shrews, moles, and hedgehogs. 277 The existence of such an RNase inhibitor (RI) was first inferred in 1952 from the decrease in RNase activity in liver supernatants, and it exists in almost all mammals. 278 The red wolf diet consists mainly of white-tailed deer and small mammals such as marsh rabbits, raccoons and nutria. 279 They were a far cry from the often mouse-sized mammals that scurried around dinosaurs.