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National Zoo and Conservation Biology Institute

Western lowland gorilla Baraka forages in the outdoor gorilla habitat at the Smithsonian's National Zoo. The silverback takes mealtime seriously, say his keepers.

How Do You Help a Gorilla With a Toothache?

A female ruby-throated hummingbird sips nectar from a flower.

How Do You Weigh a Hummingbird?

The first cheetah cub born at the Smithsonian Conservation Biology Institute celebrated his 10th birthday last year, marking a decade of the facility's successful cheetah breeding program.

5 Milestones from a Decade of Cheetah Breeding and Conservation

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