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RESTful Web APIs by Leonard Richardson, Sam Ruby, Mike Amundsen

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Colophon

The animal on the cover of RESTful Web APIs is Hoffmann’s two-toed sloth (Choloepus hoffmanni). Hoffmann’s two-toed sloth, named after German naturalist, Karl Hoffmann, is found in rainforests in Central and South America. Hoffmann’s two-toed sloth is named for its two curved forefeet, which it uses to hang upside down on tree limbs.

Adult two-toed sloths typically grow up to 21 to 28 inches in length and weigh around 4.6 to 20 pounds. The large difference in weight is due to the fact that it typically takes up to a month for its three stomachs to digest its food content. Female two-toed sloths tend to be larger than their male counterparts. Both male and female two-toed sloths have tan or light brown fur with a slight greenish color due to algae. The diet of the two-toed sloth consists of fruit, flowers, and mostly tree leaves.

The two-toed sloth is a primarily nocturnal creature that spends most of its time in trees. Like many sloths, the two-toed sloth is a notoriously slow animal, but this slowness is due to its low-energy diet. Like many other species of sloth, they have bad eyesight and hearing, making them an easy target for predators.

The cover image is from Cassell’s Natural History. The cover font is Adobe ITC Garamond. The text font is Adobe Minion Pro; the heading font is Adobe Myriad Condensed; and the code font is Dalton Maag’s Ubuntu Mono.

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