A recent scientific study takes a look at the intriguing ability of male Japanese pufferfish. The incredible fish utilize a fascinating mating ritual that involves engineering complex designs in the ...

A blackspotted puffer, also known as dog-faced puffer, is seen at Oita Marine Palace Aquarium Umitamago in the city of Oita on Dec. 15, 2017. The fish is part of a special exhibition featuring ocean ...