Gary Cobb surfaces during a dive at La Balsa Park, north of Brisbane ... an inch-long purple pineapple under the sea. The green parts of the slug are its gills and sensory receptor organs.

They found that sea slugs use bold visual signals like brightly colored spots, thick stripes, or enhanced body outlines to advertise that they are equipped with stinging cells, chemicals, or other ...

"Sea slugs are like normal slugs you find in your garden but jazzed up," Eleanor Goodman says. Ms Goodman, a Devon Wildlife Trust volunteer based at Wembury Marine Centre, said she was passionate ...