Shell game

Fifty-one years ago, a traveling circus performed at the new zoo in Changsha, the capital of Hunan Province in southern China. For a cash payment, the circus left behind a large female turtle. Zookeepers slipped the turtle into a large pond, where for a half-century it hibernated in winters and poked its pig-like snout above the water’s surface every spring. The walls of the zoo became the equivalent of a time capsule. —"China's Turtles, Emblems of a Crisis," NYT

Are there any novels narrated by turtles?

I was reminded of this.