Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Land hermit crabs have been using plastic pollution instead of shells. It raises questions about how human activities affect the behavior of wild animals.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

“The all new Trading Spaces - Texas Parks and Wildlife Edition!” commented another. Hermit crabs don’t grow the shells they inhabit, according to wildlife officials.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.

Texas video captured a unique underwater ritual: Over a dozen hermit crabs gathered together near the coast to frantically swap shells.