Elements of biology, with special Elements of biology, with special reference to their rôle in the lives of animals elementsofbiolog00buch Year: 1933 THE ORDER AMONG ANIMAL TYPES Order I. Insectivora. Moles, Hedgehogs, etc. Order II. Edentata. Sloths, Anteaters, Armadillos. 121 MONOTREMATA MARSUPIALIA FIG. 72 DUCKBILL ^'^- ^^- KANGAROO YOUNG Fig. 72.—An egg-laying mammal, the Australian Duckbill. Fig. 73.—Marsupial. An immature embryo of the Kangaroo attached to the ma- ternal nipple in the marsupium. (After Parker and Haswell: Textbook, of Zoology, published by The Macmillan Compay.) Orde
Elements of biology, with special Elements of biology, with special reference to their rôle in the lives of animals elementsofbiolog00buch Year: 1933 THE ORDER AMONG ANIMAL TYPES Order I. Insectivora. Moles, Hedgehogs, etc. Order II. Edentata. Sloths, Anteaters, Armadillos. 121 MONOTREMATA MARSUPIALIA FIG. 72 DUCKBILL ^'^- ^^- KANGAROO YOUNG Fig. 72.—An egg-laying mammal, the Australian Duckbill. Fig. 73.—Marsupial. An immature embryo of the Kangaroo attached to the ma- ternal nipple in the marsupium. (After Parker and Haswell: Textbook, of Zoology, published by The Macmillan Compay.) Order III. Chiroptera. Bats. Order IV. Rodentia. Rats, Rabbits, Mice, Squirrels, Beavers, etc.
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