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Research has revealed that the marginal eyespots in butterflies can serve to deflect bird attacks away from the insect's vital spots, thereby allowing escape. This effect is particularly effective in the low light intensities of the dim forest understory and at dawn or dusk when the resting butterflies are particularly prone to predation by birds. This individual (Faunis stomphax) shows evidence of having escaped two attacks by birds which attempted to grab the butterfly by the wing eyespots. Sarawak, Malaysia (Borneo).

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© Chien C. Lee
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Keywords
Contained in galleries
Mimicry, Borneo, Insects
Research has revealed that the marginal eyespots in butterflies can serve to deflect bird attacks away from the insect's vital spots, thereby allowing escape. This effect is particularly effective in the low light intensities of the dim forest understory and at dawn or dusk when the resting butterflies are particularly prone to predation by birds. This individual (Faunis stomphax) shows evidence of having escaped two attacks by birds which attempted to grab the butterfly by the wing eyespots. Sarawak, Malaysia (Borneo).