Meet the ninja lanternshark. It's a newly discovered animal that's really weird. It hides in the deep - and its black skin keeps it camouflaged - but it also glows in the dark.

The ninja lanternshark was discovered by a team at the Pacific Shark Research Centre, in Moss Landing, California. Its official Latin name is Etmopterus benchleyi, after Jaws author Peter Benchley.

The ninja lanternshark is roughly half a metre, or 18 inches long, and it lives at a depth of about 1,000 metres off the Pacific Coast of Central America. Its odd combo of dark and light helps it creep up on its prey, according to its discoverers.
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Here are the most accurate measurements of the ocean's biggest animals. These are confirmed measurements, unlike many found on the internet that state outrageous numbers.

It turns out, those infamous teeth are in fact razor-sharp modified placoid scales. Doesn't quite have the same ring to it.

This photo shows a diver almost being eaten by a whale shark, the world's largest fish species. Marine photographer Mauricio Handler captured the intense moment during a dive in Isla Mujeres, Mexico, when more than 600 of the 12-metre-long animals gathered to feed on tuna spawn.

Stingrays are ovoviparous, meaning that the eggs develop and hatch inside the mother, who then give birth to live young. They have between 5 and 13 offspring at a time. Before birth, the female holds the embryos in the womb without a placenta. Instead, the embryos absorb nutrients from a yolk sac, and after the sac is depleted, the mother provides uterine "milk".

Two female stingrays at the London Aquarium have given birth to young in spite of the fact that they haven't been near a male in more than two years. Therefore, it stands to reason that female stingrays have the ability to store sperm in some way.
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