National Geographic

Ice cave in Iceland. National Geographic

Many jellyfish have bioluminescent organs that emit light. This light can help them in many ways, such as attracting prey or distracting predators. National Geographic

Professional motorcycle racers have special suits that inflate when they fall. Every year, these suits save hundreds of lives from severe injuries. National Geographic

Cute couple of African antelope And these antelopes are called "water goats." However, their name does not quite match their lifestyle. National Geographic

Underground refrigerator that does not require electricity. National Geographic

The Peruvian multi-colored jay inhabits the lower tier of the forest and the shrub undergrowth. There she burrows with a small flock in search of food. National Geographic