If you’ve been online or wandered one of these beaches, you may have noticed a resurgence of what feels like an all-too familiar wildlife event –– a harmful algae bloom is here again, and spreading, impacting wildlife and causing marine mammal and wildlife rescue centers to be overburdened by the response.

The toxic algae bloom off Southern California’s coast is not only sickening sea lions and birds, it’s also killing dolphins.

Dozens of marine mammals — including dolphins — have been sickened by a toxic algae bloom off the San Diego’s coast, according to SeaWorld. Although scientists have recorded domoic-acid blooms every year recently,