With over 375 species, they range from harmless to potentially dangerous ... for those enjoying the ocean close to the shore.

There are nearly 30 species of shark found in UK waters, but the blue shark is certainly one of the most impressive. With the white underbelly contrasting with its cobalt blue upper body ...

Species like the glowing kitefin shark even live in the ... These vertical journeys usually range from 30 to 300 feet (9 to 90 m). However, blue sharks can make daily drops as far as 1,900 feet ...