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21 Shark Facts Just In Time For Shark Week

You’re more likely to be bitten by another person than by a shark, but that hasn’t stopped us from recounting nightmare stories of the ocean’s most talked about predator. Discovery Channel’s annual Shark Week is both a response to and an example of popular interest in one of the world’s most-feared predators.

Hundreds of shark species dart through oceans worldwide, with some being the size of your hand and others larger than a school bus. Even though the fear isn’t that warranted–you’re more likely to be killed by a falling coconut than a great white, after all–the shark’s deftness as a predator warrants media coverage and popular curiosity. So whether you tune into Shark Week or not, wow your friends with these insane shark facts.

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27 Incredible Underwater Pictures of Schooling Fish

Like starling murmurations, schooling fish are one of the world’s most wondrous natural phenomena. Not to be confused with shoaling fish (which refers to fish who gather to swim together socially), schooling fish are defined as a large group of fish that swim synchronously.

Swimming in a school allows fish to protect themselves from predators, improve foraging, and swim more efficiently. While scientists are still working to better understand fish schooling, experiments over the past few decades have provided much information about how (and why) fishes form schools.

For one, schooling is most likely a genetic behavior. In fact, a combination of behavioral traits and unique sensory abilities allow fish to move fluidly and in sync with the school. While schooling fish make moving in perfect time look easy, there are various factors that the fish must instantaneously account for; the fish must quickly respond to water currents and react instantly to changes within the group. Scientists have discovered that fish base their decisions on a synthesis of where all the fish in its field of view are headed, instead of following its nearest neighbors.

Check out these 27 pictures of the incredible phenomenon:

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You’ll Love This British Underwater Photography Competition

The winning photographs from this year’s British Society of Underwater Photographers (BSoUP) DIVER competition give viewers a unique perspective on some of their favorite sea creatures. From a quirky, curious grey seal to an incredible fireworks anemone (scientific name Pachycerianthus multiplicatus), this year’s photos will wow you. Here are the underwater photography competition’s top images from all four major categories.

Fireworks Sea Anemone

Source: The Guardian

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Red Tide, Blue Tide: Bioluminescence In The Ocean

Red Tide Bioluminescence Sparkling Coast

Source: Phil Hart

Red tides, which often contain harmful algal blooms (HABs), are caused by chemical reactions that occur between algae and other substances. Red by day, blue by night, this colorful ocean phenomenon is a relatively rare natural occurrence that has spawned a number of imitations in movies and literature, the most recent example being a rather striking scene in the visually-driven movie Life of Pi.

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