A fisherman from Florida was in for a surprise when he reeled in a massive shrimp-like creature, measuring 45cm long.
According to The Advertiser, fisherman Steve Bargeron was fishing from a Fort Pierce dock when he saw another man pulling in a gigantic creature from the water.
Mr Bargeron said the creature started hitting its own tail, so he grabbed it by its back like a lobster.
Experts are not sure, but think it may be a scaly-tailed mantis shrimp, which is actually not a shrimp, but a type of crustacean called a stomatopod.
The stomatopod usually grows to around 30cm long and is a carnivorous ambush predator that feeds on fish and other crustaceans.
These creatures can be found in the western Atlantic Ocean stretching from Bermuda to the Gulf of Mexico, and Massachusetts to Brazil.