How many kinds of sharks are there?

A shark is a cartilaginous fish. They have a very long history and have existed on the earth for more than 500 million years. There are many kinds, including several orders, and there are many categories below. At present, there are more than 500 recorded shark species, and about 440 species can be identified.

These different kinds of sharks are very different, with different body shapes and appearance characteristics. And they exist in different numbers at present, some are common, and some are rare.

Common shark species

Common shark species mainly include the following categories:

1, Great White Shark: Great White Shark is bigger. They are very aggressive, and their teeth are about 10 cm long. Their tails are crescent-shaped and distinctive.

2. Red-tailed shark: This shark originated in Thailand. Although he is not particularly big, he is grumpy and has a strong sense of territory.

3. Tiger shark: Tiger shark is an ornamental shark, which can be cultured in fish tanks. Their adult body length is 30-40 cm, and their bodies are still relatively small. Their eating habits are complicated, and there is no high requirement for oxygen content in water, so their adaptability is better.

4. Whale shark: It is the largest shark species and the largest fish in the world. In adulthood, their body length can even reach 20 meters.