The ocean has a definite top predator. Sharks dominate discussions, in part due to their fearsome hunting abilities, and in part due to movies like Jaws. But beneath the waves, another predator ...

The ocean is full of mighty hunters. Two of the most feared are the shark and the orca (killer whale). Sharks are ancient, solitary predators. They have rows of razor-sharp teeth, whereas orcas are ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations called ecotypes. Each ecotype indicates an ecological specialization with its ...