Beluga pod not updating
The rubbing action helps remove the top layer of old yellow skin and reveal the new skin underneath.
However, there is no evidence that Cook Inlet beluga whales go through a molt.
Their lifespan is thought to be about 35-50 years, however using the one growth layer group per year (on teeth) theory Cook Inlet belugas may live 60-70 years.
Belugas are unique among cetaceans in that they shed their outer layer of skin, or molt, each summer around July.
They concentrate in shallow water where there is coarse gravel to rub against.
average 13 feet (4 m), but may reach 16 feet (5 m) Adult females average 11.6 feet (3.55 m); adult males average 13.6 ft (4.15 m).
At birth, Alaska beluga calves have been reported to average 4.9 ft (1.5 m).
They are known as the "canaries of the sea," because they produce a vast repertoire of sounds including whistles, squeals, moos, chirps, and clicks.