The blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whale. Blue whales are long and slender and are a blue-grey color with a tapered body, small dorsal fin and flat head.

Three distinct species of blue whale can be found in the North Atlantic, Pacific and Indian Oceans. Blue Whales primarily feed on crustaceans, krill and occasionally small squid. They feed at a depth of about 330 feet and usually only surface-feed at night. Most whales lead solitary lives or travel with one other partner. They typically live to 34 years of age and their only natural predator is the orca.