File:Guide leaflet (1901) (14787884973).jpg

Identifier: scienceguide7692amer (find matches)
Title: Guide leaflet
Year: 1901 (1900s)
Authors: American Museum of Natural History
Subjects: American Museum of Natural History Natural history
Publisher: New York : The Museum
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: IMLS / LSTA / METRO

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sentatives of the order Monotremata are the echidnaor spiny anteater and the duck-billed platypus. These animals, thoughretaining primitive structures, are highly specialized to particular modesof life. The spines and toothlessness of Echidna are not primitive, norare the poison secreting fighting spurs, the duck-like bill, webbed feetand horny teeth of the platypus. Marsupalia. Pouched mammals. (4, 5, 52, 28, 29). The marsupi-als retain more primitive characters in their structures than any orderexcept the monotremes. They are an interesting and diversified groupconfined at present to the Australian region except for the opossums andCoenolestidse which occur in the Western Hemisphere. In the mammalsof this Order the young are born at a very early stage of development andmake their way into the pouch of their mother where they becomefastened to nipples. In this pouch they are carried until they are able toshift for themselves. (See well-case opposite 4). BIOLOGY OF MAMMALS MARSUPIALIA
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/. (O/^J-o^ KANGAROO The marsupials have successfully invaded almost every realm ofspecialization except that of flying. Some leap, others climb, run, sailin the air, swim or dig like moles. Some eat flesh, some insects and othersgrass. One member of the Order, Myrmecobius, the marsupial anteater,possesses 54 to 56 teeth, the greatest number found in any land mammal.Marsupials are the only land mammals of Australia other than mono-tremes, man, bats, rats and mice, and the wild dog or dingo. Insectivora. Insectivores. (6, 7). The insectivores are smallprimitive mammals, generally of flesh eating habits, that have survivedthe struggle for existence in part by the advantage of a high birth rateand the specialization to feeding habits in which few mammals competewith them. The members of the Order obtain their prey of beetles,grubs, worms and snails by burrowing in the earth, by hunting along itssurface, by chmbing trees, or by swimming. The muzzles of most ofthem are sharply pointed, a s

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