How and Why Animals Glow in the Dark

SciShow Kids

In this engaging episode of SciShow Kids, host Jessi and her robot rat friend Squeaks explore the fascinating world of bioluminescence—the ability of living things to create their own light. The video begins by breaking down the complex term into its roots: 'bio' meaning living and 'luminescence' meaning light. While acknowledging familiar land examples like fireflies, the video quickly dives into the ocean to reveal that the deep sea is teeming with glowing creatures, from tiny plankton to the fearsome anglerfish.