Fascinating/Horrifying story in the current SciAm (only a wee preview available) about how traditionally land-based pathogens are infecting sea creatures. Possum cooties killing California sea otters. MRSA in dolphins. Meningitis (presumably originating from human sewage) killing off 90% of the Caribbean's elkhorn coral. Drug resistant bacteria from livestock (treated with antibiotics) in sea mammals. And, yes, Flipper getting your cat's toxoplasmosis.