In rare video footage, a male whale shark has been spotted biting at his female partner during courtship. Before now, we knew very little about the secret sex lives of the world's largest fish ...

Some fish get away: This grouper has survived a shark attack with a gaping hole in its side. Ballesta’s team ... The fusiliers block our view, rushing in to swallow clouds of grouper eggs ...

In the past, people thought the fish were basking in the sun as they cruised near the surface—hence their name. Basking sharks are highly migratory. In spring and summer, they travel to coastal ...