Alva Review-Courier -

Wyoming biologists working to expand range of rare fish


November 29, 2020

CASPER, Wyo. (AP) — Tucked away in the remotest stretches of some of the remotest streams is a small fish that in the spring uses its head to build forts for its eggs.

The hornyhead chub, known for strange bumps that help in fort building, is one of Wyoming's rarest fish. It's also one of its most interesting, if you ask any local fisheries biologist.

The 5- to 7-inch long fish can carry rocks as big as its head to build a wall around its nest. It also allows other small, native fish to lay their eggs in its fort, then protects the array of soon-to-be fry.

And the hornyhead chub is making...

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