Giant turtles know their owners. Although its IQ is not high, after being raised for a long time, it will develop certain conditioned reflexes and be able to accurately identify its owner. If the owner is feeding a giant tortoise and finds that the giant tortoise approaches him and then opens his mouth, waiting for him to feed, this means that the tortoise recognizes the owner. After a giant tortoise recognizes its owner, it will distinguish between its owner and a stranger. Once a stranger comes to the home, the giant tortoise will retract its head.

What are the existing giant turtles on the earth:

1. Green turtle: also known as green sea turtle, it is a reptile in the ocean and belongs to the genus Turtle. The only kind. They spend most of their lives in the sea, but they still retain part of the lifestyle of their ancestors during the evolution process, so they must return to their birthplace to lay eggs and breed offspring, forming a relatively unique living habit.

2. Aldabra tortoise: The main group lives on the Aldabra Islands in the Seychelles. Because the archipelago is protected and has less human impact, there are about 100,000 Aldabra giant tortoises on the island, the largest population in the world.

3. Aldabra giant tortoise: The main group lives on the Aldabra Islands in the Seychelles. Because the archipelago is protected and has less human impact, there are about 100,000 Aldabra giant tortoises on the island, the largest population in the world.

4. Loggerhead sea turtles: also known as loggerhead sea turtles, sun-headed turtles, gossip turtles and fire turtles, they are distributed all over the world and are the oldest existing reptiles.