Marine Life

You'll spend most of your dives looking at things that don't care you're there. This is the biology behind the animals you meet, with the data rather than the folklore. The shark article is the one to send to nervous relatives.

Filter:night diving

August 26, 2026
5 min read

Bioluminescence: Why the Ocean Glows at Night

Up to 90% of deep-sea animals produce light, and it's evolved independently at least 40 times. Here's the chemistry behind the glow, and why dinoflagellates flash when you disturb them.