Gelatinous balls in Minnesota lakes and rivers.

“What folks are likely seeing are colonies of bryozoans, says DNR aquatic invertebrate biologist Gary Montz. These microscopic animals, sometimes referred to as moss animals, make jellylike tubes and attach themselves to sticks, rocks, and other submerged objects. They connect their tubes together into colonies that can be as big as a volleyball. The animals themselves live in the tubes and extend their tentacles out to capture even smaller microscopic organisms for food.” ~ learn more