The blue whale (scientific name: Balaenoptera musculus) is a marine mammal in the family baleen whales. There are 4 subspecies. The blue whale is considered to be the largest animal known to have ever lived on the earth, reaching a length of 33 meters and weighing 181 tons. The blue whale has a long, thin body and a bluish gray back, but it sometimes looks lighter in the water. The blue whale's flippers are 3-4 meters long. Gray above, white on narrow sides. All white below. The head and caudal fins are generally gray. But the back and sometimes the flippers are usually variegated.

The North Atlantic right whale (scientific name: Eubalaena glacialis) is a species of whale belonging to the true right whale genus. Currently, there are approximately 400 North Atlantic right whales living in the waters of the North Atlantic. Without dorsal fins, the head has many warts, the largest of which is located on the back and is called a cap, which can reach up to 30 centimeters in height. Two jet holes, long and narrow. The whole body is black, the abdominal color is light, and there are irregular white spots. Due to overfishing around the world, it is on the brink of extinction and has been listed as one of the six endangered whale species in the world. In the 1940s, hunting was completely banned and it was listed as a second-class protected wild animal by the state.