Tuesday, police said they found the decomposing body of an elderly man in Mussel Rock Park in Daly City. Around 9:42 a.m., a hiker reported the body on a nearby trail in the area of Westline Drive ...

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.