Why do sea turtles bury themselves?

Turtles bury themselves to keep warm. Turtles cannot generate heat on their own so they depend on the land to keep them warm. So they will go under rock, leafs, and sometimes the ground (if they are living outside). If they are inside under the proper heating they shouldn't be buring themselves. If they are i would take them to a vet and have them checked for the flu.

Hope this helped ;)