Kate Rodriguez-Clark is an animal matchmaking guru. Among her responsibilities as a population ecologist for the Smithsonian, ...

At ages 17 and 19, the Saint Louis Zoo’s lions lived long lives. According to the Smithsonian National Zoo, lions in zoos may live into their late teens or early 20s. In the wild, a lioness may ...

More than 1,800 animals reside at the Smithsonian's 163-acre National Zoo & Conservation Biology Institute, from Asian elephants to cheetahs to sea lions. Look up every now and then as you stroll ...

At ages 17 and 19, the Saint Louis Zoo’s lions lived long lives. According to the Smithsonian National Zoo, lions in zoos may live into their late teens or early 20s. In the wild, a lioness may live ...