On September 16, 2026, NOAA Fisheries observed an olive ridley sea turtle digging a nest and laying eggs near Seal Beach in California's Orange County. According to the US Fisheries Agency, this was the first documented nest of any sea turtle species on the entire US West Coast. Three days later, approximately eight miles away, a second turtle laid eggs near the Huntington Beach Pier. A multi-agency science team transported the eggs to Long Beach on September 25, 2026.
Two Nests, Initial Confusion, Two Turtles Confirmed
The turtle near Huntington Beach was initially thought to be the same individual as the one at Seal Beach. Photo analysis by NOAA research biologist Cali Turner Tomaszewicz, comparing body shape, barnacle patterns, and individual scute patterns on the shells, confirmed two different turtles.
The Storm That Drove Eggs to Aquarium Care
According to the Aquarium of the Pacific, approaching storm surge, beach erosion, and flooding threatened to destroy or wash away the nests. Biologists from US wildlife agencies decided that collecting and incubating the eggs under human care offered the highest survival chance. The Aquarium of the Pacific was authorized by the U.S. Fish and Wildlife Service to rescue threatened nests. The facility kept the eggs in sand-filled containers in a quiet, non-public area of its Molina Animal Care Center, where temperature and humidity were monitored during incubation. Local media identified the storm as Hurricane Polo and reported the eggs were expected to hatch in early November if viable.
Cause Unclear, Multiple Theories
Why the turtles nested on California beaches remains uncertain according to NOAA Fisheries, though officials emphasized nothing is ruled out and the exact reasons are very difficult to determine. NOAA Fisheries mentioned ongoing marine heat waves and the anticipated 2027 El Nino as probable factors, while noting the precise causes remain unknown.
Comparison: Approximately 700 Miles to the Nearest Known Nesting Beach
The nearest known nesting beach for the species lies in the western Cape region of Baja California near Todos Santos, with occasional nests near Magdalena Bay on Baja California's Pacific coast. According to local media, the nearest known nesting beach is approximately 700 miles south of both California sites. Olive ridley turtles sometimes nest in thousands simultaneously in so-called arribada events on beaches in Costa Rica or Mexico, but typically nest individually, as apparently occurred in California. Each turtle normally nests two to three times per season in the same area, which is why NOAA Fisheries said it would continue searching for additional nests on California beaches.
Conditions for Hatching and Release Plans
Whether hatchlings emerge depends first on whether the eggs are fertilized and viable, which NOAA Fisheries said was unknown. Incubation typically takes 45 to 60 days, during which aquarium staff will provide care. If hatching succeeds, juveniles will be released on the beaches where the eggs were laid, so they can make their own way to sea. According to Jeff Flocken, president and CEO of the Aquarium of the Pacific, successful hatching would be an opportunity to help a species expand its range. He called for humans to create space for endangered species to survive in the face of such unexpected adaptations.