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Short, squat and tiny killifish, also known as mummichogs or mud minnows, are masters of marshes and coastal estuaries.

Then suddenly it darted its sharp black bill into the water, speared a mummichog with no apparent emotion and tossed its head back to gulp it down before transforming back into a statue.

A type of killifish called a mummichog navigates visually, jumping up and orienting its body toward the water, according to a recent study.