Northern elephant seals have returned to the Point Reyes National Seashore. Moms are arriving to give birth and wean pups, while the guys battle it out for supremacy and the affections of the ladies. As of Wednesday, about 1,200 seals had gathered at Drakes Beach, South Beach and the Headlands. “The elephant seals are back, and they’re out in force,” said Earl Perez-Foust, a park service spokesman. “We’ve had some very busy weekends in the…