Why are beluga whales white?

Beluga whales aren't born white. They are actually born dark gray with mottled, darker patches. As they mature, they gradually lose their pigmentation and become lighter. This process is known as albinism.

However, it's important to clarify that belugas don't experience the same type of complete albinism as some other animals. They still have some pigmentation in their skin and eyes, which explains why they are not perfectly white like some albino animals.

So, while the exact reason for their lighter coloration is still being studied, it is most likely a combination of:

* Albinism: A genetic condition that reduces or eliminates melanin production, causing a decrease in pigmentation.

* Adaptation: Their white color may help them blend in with the snowy and icy environments they inhabit, particularly during the winter months.

* Camouflage: The light color may also help them camouflage themselves against the bright, sunlit water in the Arctic.

While the white color of beluga whales is a fascinating phenomenon, more research is needed to fully understand its biological and ecological significance.