A 2024 satellite photo shows an unusually active bloom of toxic cyanobacteria swirling in the water of Nevada's Pyramid Lake.

A sea lion with domoic acid poisoning from toxic algae blooms has beached itself in Redondo Beach on Tuesday, March 18, 2025.

An unusually intense toxic algae bloom was spotted from space in Nevada’s Pyramid Lake, swirling like paint in a satellite image captured in October 2024. Each year, this remote desert lake ...

During heavy rains, excess nutrients run into nearby watersheds, where they can feed potentially toxic algae blooms.

An underwater bloom of toxic algae has wreaked havoc off the coast of South Australia since mid-March 2025. After eight ...

When researchers sampled brain tissue of stranded dolphins, they found Alzheimer’s disease-like developments and drastically ...

In the summer of 2022, toxins produced by the brackish-water algae Prymnesium parvum killed about 1,000 metric tons of fish, snails, and mussels in the River Oder. In a study published in the journal ...

A long-term analysis shows that a major Oregon reservoir abruptly swapped one type of toxic algae for another midway through ...

TIBURON, Calif. (KGO) -- By now, we know that the Dungeness crab season has been delayed and we know the reason a toxic acid produced by algae in warmer, El Nino waters. One of the world's foremost ...

The "vile"-smelling, "guacamole-thick" algae is keeping beach-goers away. — -- What officials have called "unprecedented" toxic algae blooms in some of southern Florida's beaches and waterways is ...