Ozzie, the oldest male gorilla on record, celebrated with a multi-tiered ice "cake."

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gorilla 60th birthday
Credit: Zoo Atlanta

Ozzie's 60th birthday was a particularly special one.

The western lowland gorilla, who celebrated his milestone on Sunday, is the world's oldest living male gorilla-and the oldest male gorilla on record, according to his caretakers at Zoo Atlanta.

So the big guy was rightfully celebrated on June 20, most notably enjoying a multi-tiered ice "cake" full of frozen fruit and some extra love from staff.

According to a press release from Zoo Atlanta, 350-pound Ozzie has "more than 20 descendants" that span three generations. Some still live with him at Zoo Atlanta, while others have been moved to Association of Zoos and Aquariums-accredited zoos over time. Currently, he lives in a habitat specially configured for senior gorillas with females Choomba, 58, Machi, 45, and Kuchi, 36. Gorillas are deemed geriatric after the age of 40, the zoo says.

In part because of hunting, habitat loss and disease, western lowland gorillas are considered critically endangered by the International Union for Conservation of Nature.

This story originally appeared on people.com