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Open Wide (and Fast)

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Slow and steady might win races for tortoises, but it's not clear that the same strategy would work for a pond turtle ambushing its prey. Imagine one of these torpid reptiles trying to hide its awkward shell from a school of minnows: The turtle crouches warily behind a tuft of vegetation. Suddenly . . . long pause . . . the creature lumbers out from its blind, racing along at inches per second in hot (but clumsy) pursuit of its meal. Favorable comparisons between the turtle and, say, a cheetah lying in wait for a Thomson's gazelle do not spring to mind. Yet―who'd have thunk it?―several turtles make fine ambush predators. The massive alligator snapper, for one, lures fish into its gaping mouth by twitching the tip of its tongue. Another, the Australian snake-necked turtle, grabs its prey with a quick, serpentine strike. The basic mechanics of its strike are both surprising and surprisingly effective.
机译:缓慢而稳定的举动可能会赢得乌龟竞赛,但目前尚不清楚,同样的策略是否适用于伏击猎物的池塘龟。想象一下其中的一个爬行动物试图将其笨拙的壳藏在一群小now鱼中:乌龟蹲伏在一簇植物后面。突然。 。 。长时间的停顿。 。 。该生物笨拙地从瞎子身上爬出来,以每秒几英寸的速度竞速前进(但笨拙)进餐。乌龟与躺在等待汤姆森瞪羚的猎豹之间进行有利的比较并没有想到。但是-谁会打它?-几只海龟会成为很好的伏击捕食者。巨大的鳄鱼鲷鱼之一,是通过扭动其舌尖将鱼引到张开的嘴里。另一只澳大利亚蛇颈龟以迅捷的蛇形攻击抓住了猎物。打击的基本机制既令人惊讶,又出奇地有效。

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