Discover interesting facts about where sharks live ... Species like the glowing kitefin shark even live in the ocean's deep "twilight zone," where light barely penetrates. Many sharks also ...

Measuring the Greenland shark’s growth rate is challenging because individuals are rarely recaptured. However, one shark tagged in 1936 had only grown 2.3 inches when it reappeared 16 years later.

And, fun facts for kids can feed their curiosities ... Human teeth are as tough as a shark’s teeth. Babies have a greater number of bones than adults. A starfish does not have a brain.

Cerrie Burnell, author of 'The Girl with the Shark's teeth', divulges her favourite shark facts. Watch the video and then vote for your favourite below! BBC Homepage ...

Nicknamed the Ginsu shark after the kitchen knife that slices and dices, Cretoxyrhina ripped apart prey with a mouth full of razor-sharp, bone-shearing teeth. Evidence suggests Cretoxyrhina fed on ...