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crypsis
In ecology, crypsis is the ability of an organism to avoid observation or detection by other organisms. It may be either a predation strategy or an antipredator adaptation, and methods include camouflage, nocturnality, subterranean lifestyle, transparency, and mimicry. The word can also be used in the context of eggs and pheromone production. Crypsis can in principle involve visual, olfactory or auditory camouflage.〔(【引用サイトリンク】title=Definition of Crypsis )〕
==Overview==
There is a strong evolutionary pressure for animals to blend into their environment or conceal their shape, for prey animals to avoid predators and for predators to be able to avoid detection by prey. Exceptions include large herbivores without natural enemies, brilliantly-colored birds that rely on flight to escape predators, and venomous animals that advertise with bright colors. Cryptic animals include the tawny frogmouth (feather patterning resembles bark), the tuatara (hides in burrows all day; nocturnal), some jellyfish (transparent), the leafy sea dragon, and the flounder (covers itself in sediment).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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