Meet the rockhead poacher, the fish with a mysterious hollow in its skull

Along the rocky coasts of Washington, there is a small fish that has left scientists scratching their heads. The rockhead ...
Discover Wildlife

There's a weird fish in Washington with a huge hole in its head. Scientists think they've figured out why

Researchers studying rockhead poachers from Deadman Bay think they may have solved the mystery of the fish's odd bowl-shaped ...