PHILADELPHIA (CBS)–It’s a birthday extravaganza at the Philadelphia Zoo!

The zoo is celebrating its newest toddlers.

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Gorilla baby “Amani” is six months old today and her quadruplet lemur friends are turning one!

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It’s a call for celebration as both species are critically endangered in the wild.

The birthday party for the babies will start at 10:30 this morning.

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Primate experts will be onsite to answer questions, while the animals open their presents and enjoy some cake!