We occasionally hear about fish that live under immense pressure in the darkest ocean pits, but we don't often get to see them kicking around in their habitat. Well, a team of researchers has managed to get a camera rolling 4.8 miles (7.7 km) below the surface of the Pacific Ocean, and it's captured a species of snailfish living there. Check out a clip with commentary from the New Scientist:
According to a separate piece by National Geographic, the snailfish are the "deepest living fishes ever filmed." Even though these creatures must withstand the equivalent pressure of 1,600 elephants piled on the roof of a Mini car, the researchers have observed specimens up to 12" (30 cm) long. Before this expedition, the only specimens seen were pickled ones "trawled up by Russian scientists in the 1950s."