GNAWERS MOST NUMEROUS OF MAMMALS

The rodents vastly outnumber all other mammals and are typified by the

squirrels, rats, and mice; their food is mainly vegetable matter, but

many of them eat insects and meat whenever available. The carnivores,

including such species as the weasel, mink, and marten, are mainly

flesh eaters, preying largely upon rodents, but they also eat insects

and fruits of many kinds. The insectivores include the moles and

shrews, which, with all the bats found within our limits, are almost

exclusively eaters of worms and insects.

While rodents primarily feed on vegetable matter, it is surprising

to note the large number of species among them which commonly feed

on insects and have strong carnivorous propensities. This is not so

much the case with such larger rodents as the beaver, porcupine, and

woodchuck, but most of the smaller kinds, from squirrels to mice, have

been found to be confirmed flesh eaters.

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Wild Animals of North America Intimate Studies of Big and Little Creatures of the Mammal Kingdom · 第 116 / 160 题