And there they were, the snakes wrapping their slippery, slithering bodies around one another. Onlookers speculated the snakes were mating, but local expert Jason Magee, owner of OC Snake Removal in Laguna Niguel, said the photos show two males battling over dominance during breeding season.

http://www.redlandsdailyfacts.com/environment-and-nature/20170320/rattlesnakes-battle-for-female-and-dont-care-whos-watching

Three gray whales were spotted mating off the coast of southern California, during their annual migration to the Bering Sea in Alaska. Whale watching cruise captain, Frank Brennan, noticed the whales several miles out in a foggy patch of sea and used a drone to record the footage.

http://www.divephotoguide.com/underwater-photography-scuba-ocean-news/aerial-footage-gray-whales-mating/