April -65438+ 10 is the breeding season. Female and male turtles often mate for 3-4 hours in reef plates or coastal waters. After mating, the females climb up the beach at night and dig holes to lay eggs. They first dig a pit with their forelimbs and lie in it, and then dig an "egg pit" with a diameter of 20 cm and a depth of about 50 cm through the alternate movement of their hind limbs.

In Rosty Yi, spawning usually takes place between 10 and 3: 00 at night. After laying eggs, cover the egg pit with sand, leave the beach and return to the sea. Can lay eggs 23 times a year, each time 9 1- 157, up to 238. Egg white is spherical, and the eggshell leather is tough, the egg diameter is 35-58mm, and the incubation period is 30-90 days, usually 45-60 days. After hatching, the young turtles crawl back to the sea to live.

Living habits

Turtles live in the upper layer of subtropical coastal waters and live in the ocean all their lives. Most turtles live in shallow coastal waters. Some species of sea turtles live in food-rich waters in winter and migrate long distances during spawning season. Turtles are actually good swimmers. Their long forelimbs are like paddles, which makes them very suitable for life in water. ?

Turtles have the habit of migrating. When the sea water temperature drops, turtles will migrate to the water with higher water temperature to resist the cold. But sometimes the peak surface comes too fast, the water temperature drops quickly, and the turtle's body temperature, physiological activity and buoyancy control cannot be adjusted in a short time, so it will freeze to death.

Sometimes these turtles will stay in the mud for a long time, and their metabolic rate will also decrease, acting like hibernation. This is one of the few examples of hibernation found in marine life.

The above contents refer to:

Baidu encyclopedia-tortoise