Insects have six legs, except when they don't. Caterpillars — the larvae of butterflies and moths — have additional sets of limbs known as prolegs. So do the larvae and even adults of a handful of ...
Larvae have six legs and use the middle and hindmost ones called prolegs to scale trees. According to butterfly keeper Nagisa Mizuochi at the Adachi Park of Living Things in Tokyo’s Adachi Ward ...