File:Guide leaflet (1901) (14787905213).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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ies of whales is due to thecondensation of water vapor leaving the lungs and striking the cold air.As other mammals, the whales are warm blooded, their young are bornahve and are nourished on milk. The few hairs of the adults are foundabout the head. Among the Cetacea are the largest mammals that have ever lived.The longest specimen ever measured was a blue whale of one hundredand three feet. Primates. Lemurs, monkeys, apes and men. (30). The Primatesare, on the whole, a primitive group, but certain specialized forms occuramong them. Within the Order the orbit of the eye is protected by aring of bone or is completely walled off. Most Primates live an active Hfe in the trees and this environmenthas left an indelible stamp on the whole group. All four feet are more orless hand-like, the thumb and great toe being set off at an angle to theothers so that the feet are able to grasp limbs quickly and firmly. Thefeet of man are modified for terrestrial existence and the great toe is PRIMATES
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MANDRIL Tn^-ii-^ 27 28 AMERICAN MUSEUM GUIDE LEAFLET held parallel to the others, but there are still vestiges of the muscles thatin our ancestors made this great toe an efficient grasping organ The brain also reflects the arboreal life of the Primates. Centers ofalertness, of intelligence and sight are large, while the brain center con-nected with smell is poorly developed. The Lemuridse are the most primitive members of the Order, theless modified of them have long fox-like skulls, and long tails and arearboreal in their habits. Though found chiefly in Madagascar, specializedforms such as the pottos and galagos, (bush babies) are found in Africa,while others, the lorises, occur in southern Asia. As fossils the lemursare known from America and Europe as well as from the lands they nowinhabit. The most remarkable of the lemurs is the aye aye (Dauhentonia)whose rodent-like incisor teeth are used to tear open the tunnels of wood-inhabiting insects, and whose third finger is transformed

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