A 38-foot female gray whale washed ashore a few miles north of Yachats on Sunday.According to Jim Rice, stranding program manager for the Marine Mammal Institute at Oregon State University, the adult female had been dead for a couple days before washing ashore. The body was bloated but intact.“There are no obvious signs of trauma, so no obvious cause of death that’s apparent right now,” Rice said, standing next to the carcass. “We are taking som…