In rivers that once held a balanced mix of native fish, a giant predator now dominates so completely that it has started ...
This unusual behavior is not observed in Wels catfish populations elsewhere and is believed to be a learned adaptation. Due to limited food sources, the catfish became desperate enough to try hunting ...
The catfish will then swallow the bird whole. This unusual behavior is not observed in Wels catfish populations elsewhere and is believed to be a learned adaptation. Due to limited food sources, the ...