When biologists say the pacu fish eats nuts, they may be correct in more ways than one. The pacu, a toothy fish that can weigh up to 55 pounds, has been spotted in Lake Lou Yaeger in Illinois, KSDK ...
Piranha is a general name used to describe a group of freshwater fish with a fearsome reputation when it comes to feeding. There are between 40 and 60 different species; none grow larger than two feet ...
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