Yesterday we visited Otto in his territory in Morro Bay. In May, a lethargic and disoriented adult male was brought to @themarinemammalcenter and diagnosed with domoic acid toxicity. Domoic acid is produced by the marine alga Pseudo-nitzschia australis, which accumulates in some of the prey sea otters (and humans) consume, like clams and crabs. This toxin attacks the brain causing lethargy, seizures, and potentially, death. Little is known about how it affects sea otters. Given the name "Otto", he was treated, given color-coded flipper tags, and outfitted with a radio transmitter and state-of-the-art life history tag to help researchers better understand this condition. Released back to Morro Bay in September, he seems to have taken up residence as a territorial male. Thanks for posing for us, you handsome Otto, you!