A 10-foot shark sighting at a popular beach in California leads to an emergency warning issued for swimmers and surfers, urging them to enter the water at their own risk.

Excessive heat warnings have caused the closure of several popular hiking trails in San Diego County. Not all trails will be affected, but safety is still paramount in avoiding heat-related dangers while outdoors.

San Francisco firefighters and Marine Mammal Center volunteers successfully rescue a harbor seal from a perilous net entanglement in the bay.

An elusive pod of Cuvier's beaked whales made an astonishing rare appearance in Monterey Bay, leaving scientists and bystanders in awe of these deep diving wonders.

The tragic story of Tuffy, the Bay Area hawk adopted by a family of bald eagles, comes to a heartbreaking end as troubling events unfolded in the nest above.

When a mega hive was found in the walls of a Murrieta home, a woman and a firefighter were hospitalized after both suffered hundreds of bee stings.

An unprecedented toxic algae outbreak in Southern California puts marine life at risk, overcrowding wildlife care centers and threatening to spread to the Bay Area.

Marin County's move to eliminate entrance fees at their parks promotes equity and invites everyone to enjoy these beautiful natural spaces.

As toxic algae blooms continue to shut down swimming areas in the East Bay and affect marine life along the California coastline, concerns grow over human and ecological impacts.

An elusive jellyfish-like creature has been spotted pulsing through Lake Merritt, captivating experts and locals alike.

An almost extinct species, the Santa Cruz kangaroo rat, critical to the local ecosystem, has recently been rediscovered in the Sierra Azul Open Space after more than 75 years, leaving researchers hopeful for the species' future.

The search ended Thursday for the missing Titanic-exploring submersible, OceanGate's Titan, with the Coast Guard confirming that it had identified a piece of the vessel among a debris field spotted by a remote-controlled device near the site of the famous ship's wreckage. 

Despite the wet winter, wildfires have already started in the Bay Area and beyond. Cal Fire is urging preparation for the season ahead.