. Animal biology. Zoology; Biology. 438 METAZOAN PHYLA. Fig. 334.—Three-toed sloth, Bradypus tridactylus. A member of the hairy edentates, found in the forests of tropical America, it is entirely arboreal and adapted to hanging, back downward, from branches of trees by its long, curved claws, and as an adjustment to this habit it can rotate its head 180 degrees. In the damp forests sloths commonly have green algae growing on their hair. This condition, together with their exceedingly slow move- ments, renders them inconspicuous among the foliage. The hair on the legs and underside of the body


. Animal biology. Zoology; Biology. 438 METAZOAN PHYLA. Fig. 334.—Three-toed sloth, Bradypus tridactylus. A member of the hairy edentates, found in the forests of tropical America, it is entirely arboreal and adapted to hanging, back downward, from branches of trees by its long, curved claws, and as an adjustment to this habit it can rotate its head 180 degrees. In the damp forests sloths commonly have green algae growing on their hair. This condition, together with their exceedingly slow move- ments, renders them inconspicuous among the foliage. The hair on the legs and underside of the body forms a water-shedding device by being directed downward. Sloths have short jaws with teeth, the tail is short or absent. The three-toed sloth has nine cervical vertebrae, whereas the two-toed form has but six. (Photographed from a specimen in the University of Nebraska State Museum.) Psa/fer/'um Esophagus. 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 Wolcott, Robert Henry, 1868-1934; University of Nebraska (Lincoln campus). Dept. of Zoology. New York ; London : McGraw-Hill Book Company, Inc.


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