STARTING WITH CLUE 5 GUESS THE FISH USING AS FEW CLUES AS POSSIBLE
Wild specimens of this fish escaped from captivity in North America in the 1960s and have been a feral problem there ever since. It’s a masterful escape artist – the challenge is to keep it tanked.
Adapted gills allow this fish to breathe atmospheric air. As long as the gills remain wet, it can survive for up to 31 hours out of water. It can even breathe through its skin.
It has a venomous sting located in its dorsal and pectoral spines. While small specimens and Asian types have a bee-like sting, some African varieties have been known to hospitalise people.
The fish grows to 30-45cm maximum in aquaria. Because it grows so quickly and feeds so ravenously, it’s become a prime choice for aquaculture and the majority are farmed for food.
In the wild it will often walk from one river to another, using its pectoral fins as anchors as the body twists from side to side. It’s an unusual catfish, being energetic even in daylight hours.