Trilobites: What Moves Gravel-Size Gypsum Crystals Around the Desert? The large crystals, and perhaps life forms within, may be scattered around by a whirlwind that a geologist calls a gravel devil. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:NASA WARNING: Half of astronauts in danger of reawakening SPACE HERPES on missionsDaily Low-Dose Aspirin No Longer Recommended by Doctors, if You’re HealthyDNA and a Coincidence Lead to Arrest in 1999 Double Murder in AlabamaHow Ultima Thule Is Like a Sticky, Pull-Apart PastryMars mission off? Space travel can turn harmless bacteria into deadly SUPERBUGSWomen With Twin Brothers Are More Likely to Face Penalties at School and Work
