These colorful, feathery stalks are the antennae of a mole crab, also known as a sand flea. You may have seen these little critters burrowing into the sand at the beach as the waves wash over the ...

This is a portion of a single antenna from a geometer moth (the species of moth whose caterpillar stage is the inchworm). This type of feathery antenna is called a plumouse (from the Latin word pluma, ...