Lecture 3 - Lecture 3 Whiriligig Beetles: Bicoloration...

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Lecture 3 Whiriligig Beetles: Bicoloration offers background matching from two directions. Countershading: self-shadow concealment …Plan B = startle patterns Gray Tree Frog have bright yellow areas under the legs, and these are their startle pattern. Giant Shallowtail startle pattern is a red snake like tongue called an osmetaria. Have a very bad smell. Do beavers have startle patterns? Yes, startle sound by slapping its tail. o Does it to startle the predator and/or to warn other family members. Startle Patterns are hidden until needed. - Not all eyespots are hidden (ex. Eyed elater, tiger shallowtail) o Eye-spots can make an animal look larger than life – not distraction patterns - Sometimes startle pattern attract predators to a non-important part of the body – distraction or deflection of attack – known as 2 nd function. Fake antennae and heads for distraction or deflection (ex. Eastern Tailed Blue). -
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Lecture 3 - Lecture 3 Whiriligig Beetles: Bicoloration...

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