Before and after. At left, Fisher and Hildebrand's image of a rock and its mussel bed community they sampled at Dillon Beach in 1941. At right, the exact same rock sampled by Longman in 2018.
A mussel bed along Northern California's Dillon Beach ... loss compared with what Hildebrand and Fisher saw in 1941, but it did reveal a signal of climate change: The relative abundance of species ...