How to identify dolphins fish?
Despite the fact that they live in the ocean, dolphins are warm-blooded mammals that breathe and suckle their young. What is the difference between dolphins and whales? There is a difference between what we call a whale and what biologically is a whale. We tend to use whale for larger mammals living in the sea. Whales have baleen whereas dolphins have teeth. Killer whales for instance therefore are technically dolphins. What do they eat? Dolphins feed on most kinds of fish, including mullet, whiting, snapper, tuna, bream and invertebrates such as squid. How do they sleep? Dolphins sleep on the surface with only the blow hole exposed. Dolphins are ‘conscious’ breathers, which means that they have to be awake or semi-conscious to breathe, otherwise they would drown. They doze for a few minutes at a time, and their blow hole periodically opens and closes by reflex action. They sleep in a semi-conscious state, resting one side of the brain for a short time then swapping over. This techniqu
