Whales are the largest mammals in the ocean and one of the largest animals in the world. They are huge, more than 30 meters long and weigh tens of tons. Whales are divided into two categories, one is toothed whales and the other is baleen whales.
Toothed whales include blue whales, killer whales, sperm whales, etc., which are characterized by sharp teeth. Toothed whales feed mainly on fish and marine mammals, while blue whales, which feed mainly on small zooplankton, are the largest animals in the world, and their tongues can reach the weight of 20 people.
Toothed whale - blue whale
Toothed whale - killer whale
Toothed whale - sperm whale
Baleen whales feed on plankton in the ocean, such as humpback whales, gray whales, and arctic whales. Baleen whales have hundreds of whisker hairs on their throats that filter out plankton in the seawater.
Baleen whales - humpback whales
Baleen whales - gray whales
Whales are mammals, and they are characterized by lung breathing and lactation habits. Whales can stay underwater for a long time, but need to surface regularly to breathe or they will suffocate.
Whales are also highly social animals, forming large colonies. Blue whales' calls can travel hundreds of kilometers, and they can use their calls to communicate and localize. Whales communicate in a similar way to humans, using body language, voice and chemicals to transmit information.
However, whale populations are declining due to factors such as overhunting by humans and marine pollution. There are now multiple whales listed as endangered worldwide, and action must be taken to protect them. We should pay attention to the protection of whales and let them continue to survive on Earth.