We Have No Idea Why

The video explores the phenomenon of bioluminescence, highlighting its rarity on land compared to its prevalence in the ocean. It discusses potential reasons for this disparity, such as evolutionary timelines, environmental factors, and the role of darkness. Despite various hypotheses, the exact reasons why bioluminescence is more common in marine environments remain unclear, leaving scientists with many unanswered questions.

What are some potential reasons why non-ocean animals do not exhibit bioluminescence?

What is the significance of the 200 million year head start that ocean animals had in evolving bioluminescence?