. Guide leaflet. FRUIT BAT Pteropus species As in other bats the fore legs are modified, or changed,for flight, all the bones, but especially the fingers, beinggreatly lengthened to form supports for the membrane thatserves as a wing. The fruit bats fly with rather slow wingbeats and the outer part of the wing is proportionately largerand more rounded than in their smaller, more active hind feet are little used, serving mainly as hooks by whichthe bat hangs itself up—head downwards—to MOLEScalops aquaticus Modifications of the skeleton for an underground life aremost evid
. Guide leaflet. FRUIT BAT Pteropus species As in other bats the fore legs are modified, or changed,for flight, all the bones, but especially the fingers, beinggreatly lengthened to form supports for the membrane thatserves as a wing. The fruit bats fly with rather slow wingbeats and the outer part of the wing is proportionately largerand more rounded than in their smaller, more active hind feet are little used, serving mainly as hooks by whichthe bat hangs itself up—head downwards—to MOLEScalops aquaticus Modifications of the skeleton for an underground life aremost evident in the fore limbs which perform the work ofdigging, being for this purpose short and stout, the handslarge, and turned on edge. (In the figure the hand is turneddown to show the bones). The foot is also strengthened by the addition of a bonerunning along the edge of the foot, shown in the picture. Thisbone is not found in other mammals. The skeleton of the mole illustrates the fact that a boneof little importance in one group of animals may be of greatvalue in another. In the cat and the seal, in which there is no particularstrain on the fore feet and great freedom of movement isneeded, the clavicle or collar bone is very small, or absent:it is also absent in the porpoise in which the fore limb isscarcely used. In the bat and the mole in which flying or digging bringgreat strain on the fore limb, the collar bone is very strong tobrace the shoulder. This is particularly evident in the mole. KALE
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
