Object Lessons in Elementary Science Following the Scheme Issued By the London
Object Lessons in Elementary Science Following the Scheme Issued By the London
Vincent T Vincent Thomas Murch
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They breathe rapidly, i. E. They take in more air than usual, and soon become very hot. The frog takes in so small a quantity of air, that it is not enough to warm its blood. Its blood is always cold. We say it is a cold-blooded animal. It has no need to keep heat in its body, as warm- blooded animals have, hence it is not provided with a warm coat, but has a naked skin, which always feels cold and clammy to the touch. 102 OBJECT LESSONS STAND, in III. COMPARISON WITH A TOAD The toad is an anim...al belonging to the same class as the frog. The toad, however, differs from the frog in several particulars. In the first place it is more clumsily built, and moves about with a slow, crawling gait. Its legs are so short that it cannot leap as the frog does. It is a land animal and cannot swim. It hides during the day in damp spots, and comes out after sunset to prey upon insects, slugs, and worms. It has no teeth. Ugly and awkward as it is, it is quite harmless. Indeed it is most useful in the garden in destroying slugs, caterpillars, earwigs, and other vermin.
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