. Beginners zoology. Zoology. 208 BEGINNERS' ZOOLOGY Whales, Porpoises, Dolphins. — As the absurd mistake is sometimes made of confusing zvJiales with fish, the pupil may compare them in the following respects : eggs, nour- ishment of young, fins, skin, eyes, size, breathing, tem- perature, skeleton (Figs. 209, 379, and 397).. Fig. 378. — Harpooning Greenland Whale (see Fig. 351). Porpoises and dolpl/ins, which arc smaller species of whales, live near the shore and cat fish. I'^.xplain the ex- pression "blow like a ; They do not exceed five or eight feet in length, while the
. Beginners zoology. Zoology. 208 BEGINNERS' ZOOLOGY Whales, Porpoises, Dolphins. — As the absurd mistake is sometimes made of confusing zvJiales with fish, the pupil may compare them in the following respects : eggs, nour- ishment of young, fins, skin, eyes, size, breathing, tem- perature, skeleton (Figs. 209, 379, and 397).. Fig. 378. — Harpooning Greenland Whale (see Fig. 351). Porpoises and dolpl/ins, which arc smaller species of whales, live near the shore and cat fish. I'^.xplain the ex- pression "blow like a ; They do not exceed five or eight feet in length, while the deep-sea whales are from thirty to seventy-five feet in length, being by far the largest animals in the world. The size of the elephant is limited by the weight that the bones and muscles support and move. The whale's size is not so limited. The wJtalc bears one young (rarely twins) at a time. The mother carefully attends the young for a long time. The blubber, or thick layer of fat beneath the skin, serves to retain heat and lo keep the body up to the usual tempera- ture of mammals in spite of the cold water. It also serves, along with the inniioisc lungs, to give lightness to the 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 Coleman, Walter M. Toronto : Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1921
