After nine months, the strange behavior that claimed the lives of endangered sawfish is back. Here’s what we know about ...

Sea lions on the California coast are displaying strange behavior likely due to a harmful algae bloom impacting the region, ...

SeaWorld San Diego says it is getting up to 100 calls and emails a day from people reporting seeing sick animals ...

Tests using fish gill cells clearly show the dramatic ... Its toxicity is partly due to the algae's production of "reactive oxygen species," reactive forms of oxygen molecules which can cause ...

During red tide events, the researchers collected Karenia brevis bloom samples to analyze in a lab. They used a method called ...

Single-celled, microbial algae occur naturally in seawater all over ... can cause problems for people and for marine life such as fish, invertebrates such as crabs, and even marine mammals such ...