A rare comet sighting, Bastille Day fireworks, and a sea lion cub round out this week's best images.
The marine mammal finally jumped on the lifesaver's board to be cut loose from the fishing line.
The 7-year-old male was often seen around the Point Reyes National Seashore area.
Experts say the protected animals were likely killed by fishermen.
"I was a quarter mile from shore; there was nothing I could do," says a man who was bitten.
This little pup has recovered, but warming seas still threaten her species.
Milo captured a dive with a GoPro camera.
Rehabbers hope to be able to release her back into the wild.
Looking good, sea lion.
Scientists find that huge algal blooms off the U.S. West Coast produce neurotoxins that leave marine mammals dangerously