This Shark Glows in Complete Darkness 😨

Added: 2026-05-21

[00:00:00]Deep beneath [music] the ocean, scientists discovered a shark that glows in complete darkness. [music] It's called the kitefin shark, and its body produces its own bioluminescent [music] light. The glowing skin helps the shark disappear into the deep sea, where almost no sunlight can reach. But [music] scientists still don't fully understand why it glows. And far below the surface, the [music] darkness is still glowing. Follow Factoid for more terrifying discoveries.