This is a tree topper unlike any other! Reminiscent of a freshly made snow angel, these pteropods are actually shell-less sea snails (Clione limacina). Unlike the typical snail, they flap their adapted foot ‘wings’ to get around in the water column.
Their main food source is sea butterflies, tiny shelled-snails that also fly around the arctic sea. However, their shells have already begun dissolving because of higher ocean acidity caused by global warming. Losing the sea butterflies could also mean losing these beautiful sea angels with them.
See more holiday-themed ocean animals in our slideshow.
Photo: © Alexander Semenov