The Coelacanth beaked whale is a mammal of the genus Coelacanth in the family Coelacanthae of the order Cetacean. Also known as the Corvinus beaked whale, goose beaked whale, Corvinus beaked whale, or goose beaked whale, it is usually inconspicuous and rarely observed at sea, but it is a widely distributed and numerous beaked whale. The Coelacanth beaked whale is also the mammal with the deepest diving depth, with a record high of 2992 meters, slightly higher than the sperm whale. It can hold its breath for up to 2 hours in water. The Coelacanth beaked whale can be said to be found all over the world, mainly inhabiting deep waters from tropical to cold temperate zones.

The West Indian manatus, also known as the Caribbean manatee or North American manatee. It is the only large herbivorous mammal in the ocean. The body color of the West Indian manatee changes from gray to brown. Although there are differences in length and weight, on average, adult manatees can grow up to 3 meters long and weigh 454 kilograms. Among marine mammals, they are quite unique animals. Scientists have identified two subspecies, namely the Florida Sea located on the southeastern coast of the United States and the Antilles manatee located on the coasts of the Greater Antilles, the Gulf of Mexico, and the Atlantic coast of Central and South America.

The bottlenose dolphin is a mammal belonging to the genus bottlenose dolphin in the family Cetiformes, also known as the bottlenose dolphin. Bottlenose dolphins are mainly distributed in the Atlantic, Pacific, and Indian Oceans, as well as the Mediterranean and Black Seas. It is found in the Bohai Sea, Yellow Sea, East China Sea, South China Sea and other sea areas in China. It inhabits the coastal and nearshore areas of tropical and temperate seas. Feed on group dwelling fish. Bottlenose dolphins are one of the smartest animals, with a brain capacity even larger than humans. Has been listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES); Listed as a near threatened species in the Red List of Species in China; It is currently a second-class protected animal in China.