Colophon
The animal on the cover of Programming the Mobile Web, Second Edition is a jerboa, a small jumping rodent of the family Dipodidae. The 33 species of jerboa are found in deserts of Asia and North Africa. They feed on the leaves and roots of desert plants; many species also eat insects. They extract water from their food so efficiently that they do not need to drink.
Jerboas’ powerful hind legs may be four times longer than their front legs and enable them to hop up to three meters. Their tails, which are often tufted, are longer than their bodies and are used for balance. Their ears vary from species to species—they may be small and mouselike or broad and rabbitlike.
Jerboas are well adapted to their harsh desert environments. They are nocturnal and hide in burrows, which they may plug for protection against the elements, during the day. Some jerboas living in hot regions enter a state of torpor (estivation) during the hottest months; jerboas living in cold regions hibernate during the winters.
The cover image is from Riverside 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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