Flies can taste with feet

FLIES don't have anything that we would call a tongue, but they do have sensory organs. Flies have other mouth parts besides tongues that they use mostly to suck up liquids. The major structure of the mouth part is the labellum, which is a spongy structure. The labellum has lots of tubules that make it spongy.

The labellum has sensory organs that can help the fly taste. But the feet of the fly also help out. That means the fly can taste something by walking on it! Flies generally don't chew; they suck liquids from their prey. But the sensory organs in the mouth-parts tell them if they should continue eating what they've tasted.