The spectacular leaps of gazelles, group living in deer and monkeys, and fast flight in many insects are all linked by a common phenomenon—predation. In its various forms, predation has driven the evolution of a plethora of specialized structures (morphology) and behaviors among organisms. Insects, being especially vulnerable because of their small size, have evolved various strategies to avoid predators. For example, butterflies may either accumulate toxins (aposematism), mimic other toxic species (mimicry), avoid detection by predators by remaining inconspicuous (crypsis or camouflage), or look like inedible plant parts (masquerade) to escape predators.
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Source: Phys.org