A rare underwater encounter off the coast of the Bahamas shows a tiger shark appearing to “play bite” the well-known shark Emma during a feeding dive. Filmed by an experienced underwater photographer, ...

According to research, scientists know quite a lot about sharks. For example, we know that an estimated 57 shark species are bioluminescent (can produce light). We know that certain sharks, like ...

# Caffeine was the most commonly detected compound. It was present in 12 Caribbean reef sharks, all five contaminated Atlantic nurse sharks and ten lemon sharks. Cocaine was detected in one Caribbean ...