Tanner turned 23 last week, which might sound young, but it makes him the oldest bat in captivity in the world.
Instead of cake, Tanner celebrated with a bowl of papaya, mango and melon at his home at the Cranbrook Institute of Science in Michigan.
Tanner is a golden bat, a rare species found only on a small island in the Indian Ocean. There are only about 1,000 golden bats in captivity in the world.
Happy Birthday, Tanner!
- Staff Writer Bryan Dean