👉 Whitecaps are a type of marine bioluminescent algae that produces light when exposed to sunlight. They are found in the open ocean and are known for their unique appearance, which includes a white coloration on their surface due to their unique ability to absorb light energy from the sun. This phenomenon is called "white-luminescence" and has been observed at various depths in the ocean. Whitecaps are often associated with deep-sea life and have been used as indicators of marine ecosystems.