Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Not eating yellow snow is obviously wise advice, but how about snow that looks like a poppy seed bagel? You should also avoid that too, because those “seeds” may actually be tiny critters commonly called snow fleas. As a video taken at the Monomoy National Wildlife Refuge in Massachusetts shows, these little black specks bounce across the snow. While technically called springtails, snow fleas (Hypogastruna nivicola) are a springtail species active during winter. Snow fleas are generally found in groups and their dark-colored bodies are easily noticed against white snow. These ancient insects have been around 410 million years—making them older than dinosaurs.  Springtails are found in habitats all over the world. According to the United States Fish and Wildlife Service, they typically show up on top of snow because colder temperautres slow their speeds down “just enough for us to notice their chaotic parkour routine.” That hopping move is done with a forked tail called a furcula that launches the …