In Indonesia, a cow gave birth to a turtle

Rimin Ngadu from the province of Gorontalo in Indonesia was very surprised when together with the calf his cow gave birth to a turtle.
“The cow has gone to bed, I began to examine the calf and saw that there was a hill on its side, it turned out that it was a small turtle,” the farmer said.
How did the tortoise find itself inside the cow remains unknown.