Turtles can know their owners.
The tortoise has been kept for a long time and can know its owner. However, the turtle's IQ is not very high, so he can't recognize the owner's appearance. Only when it is familiar with the smell and voice of its owner can it produce conditioned reflex behavior.
When the tortoise knows its master, it will stick its head out when the master is feeding, and climb to the master's side actively, showing a very excited look. When the owner touches it, he will basically not resist, but will also show the appearance of enjoying it.
However, when the tortoise is upset, it may bite whether it knows its owner or not. So when touching the tortoise, we must pay attention to prevention.