25 Deep Sea Oddities and Mysteries

Deepwater Photosynthesis! Some types of bacteria are able to produce food by photosynthesizing near hydrothermal vents by using the vents’ red glow.  Amazing!

Upsweep in autumn and spring – an unidentified upsweeping sound.  The sounds known as upsweep are elusive and it’s difficult to locate their origin. What is an upsweep?  It is composed of a few seconds of narrow band sounds, which are most active in Autumn and Spring.

The bizarre Vampire Squid can produce a portion of its own light through spots on its sides and glowing tentacle tips.  When it is disturbed, the creature can eject glowing ink.

The mysterious Baltic item bounces radio signal when it’s near it and causes electrical equipment to stop within 650 feet.  This is an anomaly in the Baltic Sea that is still a mystery for scientists to this day.

The Angler Fish is one of the most bizarre deep sea creatures. It has an appendage coming out its forehead that has a light on its end to lure prey before engulfing them with its mouth.

Another mysterious sound is the “bloop,” which scientists believe could have been coming from a big marine creature or from the sound of ice breaking off a massive glacier.

The mysterious loss of submarines by four countries, including Russia, US, France and Israel. In 1968 four countries lost submarines. Some say that it could be a cover-up or that some nuclear-tipped tornadoes had misfired into the submarines.

This is the Sea Gooseberry. It does not sting like most jellyfish but it has sticky tentacles to catch its prey.

Amelia Earhart with her co-pilot disappeared over the Pacific Ocean in 1937.  The bodies and wreckage were never found and the disappearance remains a mystery to this day.

Scientists recently discovered bacteria are feeding off marine residue millions of years old.  These bacteria are living 1000 feet below sea level.

The Bigfin Squid can reach up to 16 feet long with its tentacles. The creature was first found off the Hawaiian coast (mid 2000s), and is rarely photographed.

A not yet named Indian Ocean snail uses iron compounds in order to protect its fleshy foot. The US Military has been researching the snail in order to improve their battle armor.

Hydrothermal vent worms have neither a digestive system or a mouth. In order to live, they rely on a relationship with a type of bacteria that use chemicals to make food that the worms could absorb.

Holding onto its huge egg mass for months before they hatch, the Gonatus onyx is one of the most odds deep sea creatures we’ve seen.

Cold water corals were recently discovered off Norway’s coast, covering 39 sq miles. Many of the cold water reefs are being destroyed by vessels.

 Only two specimens of this enormous eel species were ever found.  Both were larvae of Leptocephalusgiganteus.  If one was extrapolated to its adult size it could measure up to 21 meters long.

The frilled shark crimp the body of its preys before it leaps forward like a snake. It is a rarely seen and photographed living fossil.

The elusive proof of the prehistoric and massive Megalodon. It was discovered when Japanese scientists caught a shark in their nets that measured at least 9 meters.

Whirlpools exist in deep-sea vents. They can break away or even swirl, bringing chemicals, heat and organisms across the surface.

A giant squid filmed in July 2012 weighed up to 1000 pounds and measured up to 43 feet. They are rarely seen and usually only found when they wash up on beaches.

With 25 rotating hooks on the end of each of its tentacles and predominantly living in the Antarctic, the giant squid is one of the most bizarre creatures on the planet.

The sulphur lake in the Pacific Ring of Fire is a special lake, being both underwater and composed of molten sulphur. This area is teeming with life, such as shrimps and crabs, which can survive the condition.

The Dragonfish is the only creature with the ability to see the red light of other Dragonfishes. The bioluminescent dragonfish is the only one of its kind  that has this ability which makes it one of the most fascinating deep sea oddities.

The Macropinna has a head that’s covered by a fluid filled and transparent dome, making it to this list of our top 25 deep sea oddities.

NEXT ARTICLE