The palatal organ of fish such as minnows, carp, and catfish can also be a bundle of muscle, but biologists are split on whether it should be considered a tongue.

Scientists first identified this palatal organ in the monster ghost shark in 2015.

An indenting plate squashes on to one of these, creating a shallow meat basin which palatal conquistadors can fill with garlic mushroom, diced chorizo, wasabi mayonnaise, whatever.

Human echolocators use palatal clicks or hand claps to “see” objects around them, like sonar in bats, only bats use ultrasonic frequencies that can resolve flying insects.

Skull: Long and slender; rostrum long and narrow; zygomatic and mastoidal breadths slight; palatal pits deep; upper incisors narrow; basioccipital wide.