. Animal physiology. Physiology, Comparative. Fig. 237.—Hare ascending a Htll. moving slowly, advances the fore-feet two or three steps alternately, the posterior limbs remaining inactive; and the body having been lengthened by these means, the posterior legs are suddenly extended together, and then drawn for- wards : thus the rabbit walks with the fore and leaps with the hind pair of legs. The Frog moves in a very similar manner. 662. It is among Insects that we find the most extraordi- nary powers of leaping, considered with reference to the size of the animals that possess them. Thus the Fl
. Animal physiology. Physiology, Comparative. Fig. 237.—Hare ascending a Htll. moving slowly, advances the fore-feet two or three steps alternately, the posterior limbs remaining inactive; and the body having been lengthened by these means, the posterior legs are suddenly extended together, and then drawn for- wards : thus the rabbit walks with the fore and leaps with the hind pair of legs. The Frog moves in a very similar manner. 662. It is among Insects that we find the most extraordi- nary powers of leaping, considered with reference to the size of the animals that possess them. Thus the Flea will spring to a height equal to 200 times the length of its body. Let us imagine a Kangaroo or a Tiger doing the same ! In many of the leaping insects, the hind legs arc of great length, as in the Grasshopper and Cricket tribe (fig. 238); and in one curious family, that of the Poduras or spring-tails, the leap is accomplished by the sudden extension of the tail, which is ordinarily bent under the body (fig. 239). A very remarkable kind of leap is. Fig. 238.— Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carpenter, William Benjamin, 1813-1885. London : H. G. Bohn
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