How to spot the toxic algae that’s killing dogs in the Southeast

(CNN)Dog owners in the Southeast are spreading the word about the dangers of contaminated water following the deaths of their beloved pets. Algae occurs naturally in water, but the blue-green variety are considered Harmful Algal Blooms (HABs). Blue-green algae, also known as cyanobacteria, are “primitive,” photosynthetic organisms that can feed off the sun to make their own energy and release oxygen and possibly toxins in the process, said David G. Schmale III, a professor at Virginia Tech. Some species produce …