It wasn’t long ago that America’s fisheries were in a state of collapse, with cratering fish stocks and impractical regulations that threatened a $180 billion dollar industry.

Scientists working in Mexico have recorded multiple incidents in which a group of orcas hunt young great white sharks and eat their energy-rich livers.

Scientists have captured rare footage of remoras, also known as sucker fish, hitching rides on humpback whales off the coast of Australia.

A tight-knit orca squad in the Gulf of California has perfected a grim skill: roll a young great white shark onto its back, ...