Which type of insect has adults that can jump when leaves are moved?

Fleas are known for their remarkable jumping ability, which allows them to leap significant distances relative to their body size. This trait is particularly beneficial for their survival, as it helps them evade predators and can also assist them in finding hosts to feed on. When leaves or other surfaces are disturbed, the sudden movement can trigger a flea's instinct to jump away rapidly, which is a behavior commonly observed in these insects.

While springtails also have a form of jumping ability through their unique tail structure, which allows them to propel themselves into the air, they often remain less noticeable in situations like rustling leaves compared to fleas. Butterflies and beetles do not exhibit this same type of jumping behavior; instead, they rely on flying or crawling for movement. Understanding these distinctions clarifies why fleas are the correct answer in this context.