Studies of insulin, blood sugar and diabetes in other animals such as fish and dogs have already saved millions of lives and could lead to new treatments for type 1 and type 2 diabetes.

ELAFONISOS, Greece — A month earlier, the two divers had scoured this exact seabed, spearfishing a single species until the craggy floor was nearly bare. Now, they cut the engine and wriggled into ...

Cole & Jay experiment with a venomous snake lure to catch fish.