QUINTANA, Texas — A Lone Star mystery was quickly solved after mystery mounds were seen popping up on a Texas beach over the week. The mounds were popping up on the beaches at Quintana Beach ...

Screengrabs from video shared to Facebook by Quintana Beach County Park. “Mini volcanoes” appeared all over a Texas beach recently, covering the sand in strange scattered mounds, video shows.

The mounds are made by ghost shrimp, Quintana Beach County Park said in a Dec. 10 Facebook post, sharing video of countless burrows sitting where the sand meets the surf. Normally, land dwellers ...