Pea Puffers top out around 1.4 inches, maximum, but most stay around 1 inch. Their tiny size makes them one of the best fish for a small aquarium.

Around 30 species have also been discovered living in the freshwater river systems of South America, South Asia and Africa, including the Congo potato puffer, Tetraodon miurus, and the Indian pea ...

Why some fish are really bad at swimming. Seahorses, frogfish, and others live the life aquatic with little swimming. Not everyone can swim like a fish—even among fish.

Anglers are again being warned about a poisonous fish in Rhode Island waters. Some people eat smooth puffer fish, and some consider them a delicacy, but they're "a serious threat to your health if ...