The title sounds creepy, but as we already know not to eat yellow snow, we also want to definitely stay away from pink snow as well. Let’s look at what blood snow is and why you should stay away from it.
A better name for it
This type of snow is sometimes called by the tasty-sounding moniker of “pink watermelon snow,” which brings to mind a refreshing snow cone, which is so much better than the not-so-appetizing nicknames blood snow or red snow.
The reddish color you see in pink snow comes from a type of algae and, thus, is also sometimes called snow algae.
If you’ve ever owned a pool, you may already be familiar with algae coming in such colors as green, yellow, pink, and black.
The bright pink hue of blood snow comes from a species of algae known as Chlamydomonas nivalis. It is a type of cold-tolerant algae that thrives on snow and ice, science alert reports. But there’s more to the pigment than eye candy, it has a function.
The red pigment acts as a natural sunscreen, which protects the algae from visible and ultraviolet radiation, as well as absorbs warmth from the surrounding area.
Why is it sometimes called pink watermelon snow?
The color alone is not why pink watermelon snow picked up its moniker. Many people report that the snow has a faint smell similar to watermelon. However, scientists have not yet figured out what creates this aroma.
Warning: Toxic to ingest
You probably already know that there are many different types of toxic algae blooms. You’ve probably heard of the “red tide” algae blooms that sicken people and animals, as well as kill marine life. These toxins also get into the air and can be breathed in.
Blood snow snow is another type of algae bloom that is toxic to both humans and animals.
The CDC has more information on algal and cyanobacterial toxins.
Blood snow can happen in any mountain region, from Montana’s Glacier National Park to the French Alps. You’ve been warned!
