For me the megamouth shark is the perfect poster child for deep-sea mysteries. Many deep-sea creatures cope by creating light themselves - also known as bioluminescence. amnh.org . Bioluminescence is literally a 'cold fire'.

On 10 October 1990 — 11 days before Otto Elliot snagged Megamouth #6 in his swordfish nets — two credible observers saw what was very probably a Megamouth Shark. Jump to navigation Jump to search ... IS customary to capitalize ALL BUT the species, as shown by the the first line of text of the ARTICLE not title: "The megamouth shark, Megachasma pelagios ... Bioluminescence. Light on skin properties of megamouth shark, Megachasma pelagios (Lamniforme) Primary tabs. The megamouth shark is a very rare shark which has only been seen a handful of times. Megamouth Sharks, Japan. It was first discovered in 1976. First, it was the rare goblin shark caught last week by a fisherman in the Gulf of Mexico -- only the second on record -- now it's a megamouth shark, also rare, that's gaining attention. Bioluminescence, by contrast, is nearly 100% efficient. Talk:Megamouth shark. Megamouth Shark. Bioluminescence is the production and emission of light by a living organism. Bioluminescence in the Solomon Islands, AMNH.

Virtually all of the energy generated by the luciferin-luciferase reaction is converted into light with almost none lost in heat or sound production. Megamouth sharks are named for their large, unusual mouths. (and before you say it, no this does not mean Megalodon could still be alive. Like basking sharks, megamouth sharks live off plankton. They are the smallest of the three plankton eating sharks growing to 18 feet. Leatherback Sea Turtles are the oldest sea turtle species. Narwhals dive to this depth up to 15 times a day in search for food. Occasionally, however, Megamouth Sharks are seen at the surface during daylight hours. In 2013 researchers from the American Museum of Natural History set off for the Solomon Islands to discover more about bioluminescence with a Triton submersible. It is unclear when exactly the 13-foot, nearly 1,500-pound megamouth was caught, but it was recently dissected and put on display at the Marine Science Museum in S The Japanese Spider Crab is the largest known crab with a maximum leg span of 3.8m. When it was finally brought to the surface and examined, the 4.6 meter long shark was found to be a completely unknown species. Why they might do so is something of a mystery. It is a form of chemiluminescence.

Megamouth Shark In 1976, a large shark got entangled in the sea anchor of the US Navy ship AFB-14 off the coast of Hawaii.

It is quite outstanding that in days of such high fishing pressures, this shark has remained, at most, hidden from the public eye.

It just simply isn’t). Voir (active tab) ... the light may be produced by bioluminescence inside its mouth or on the white band of its upper jaw; (ii) light can be due to the reflection on this white band. Megamouth sharks are slow, with a soft flabby body, and are lazy and less active than other sharks. It does make you think how many other creatures there are in the deep-sea that we still don’t know about. Coelacanths were thought to be extinct until found alive in 1938.