California sea otters have been poisoned by the microcystin toxin. This sea otter pup is healthy. (Photo by R. Wilder, Monterey Bay Aquarium) A potent toxin produced by bright-green blooms of ...

A gut toxin that’s been linked to colorectal cancers for more than two decades may be contributing to the sharp rise of the disease in younger people, according to landmark research published ...

A new study found dolphins in Florida's Indian River Lagoon have brain changes similar to those seen in human Alzheimer's disease. Scientists consider dolphins a sentinel species, meaning their health ...

New Guinea is home to some of the world’s most toxic birds. Why they contain poison, and how they withstand it is still a source of scientific mystery. The variable pitohui, a poisonous bird, captured ...

Cobra venoms are enriched with toxins of low molecular mass, known as three-finger toxins (Panel A). Some of these are neurotoxins, which bind with high affinity to the nicotinic cholinergic receptors ...