iOS Game Development Cookbook

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The animal on the cover of iOS Game Development Cookbook is a queen triggerfish (Balistes vetula), a reef-dwelling triggerfish from the Atlantic Ocean. They can reach up to 24 in (60 cm), though on average, they measure about half that measurement. Typically, the queen triggerfish is blue, purple, turquoise, and green with a yellow throat, with light blue lines on its head and fins. When stressed, the triggerfish can change color to match its surroundings.

Queen triggerfish can be found at depths of 9.8–98.4 ft (3–30 m) around coral or rocky reefs ranging from Canada to southern Brazil in the West Atlantic; they’ve also been found as deep as 902 ft (275 m) and in areas with sand or seagrass. In the East Atlantic, queen triggerfish can be found at Cape Verde, Azores, Ascension, and Angola. Commonly found along the shores of Florida, the Bahamas, and the Caribbean, the queen triggerfish preys on invertebrates such as sea urchins.

The queen triggerfish is one of the largest and most aggressive of the triggerfish, and therefore isn’t a good choice for marine aquariums. An ideal aquarium for this species is a 500 gallon aquarium, with food sources of shrimp, squid, clams, octopus, scallops, and crab.

The cover image is from origin unknown. The cover fonts are URW Typewriter and Guardian Sans. The text font is Adobe Minion Pro; the heading font is Adobe Myriad Condensed; and the code font is Dalton Maag’s Ubuntu Mono.