The Houston Zoo is prepared to protect animals from the cold by staffing a 70-person crew to ride out the weekend.

Shortly after the Zoo’s opening, a six-foot alligator escapes its enclosure and takes refuge in Swan Lake. Sol Stephan was paid $25 for its recapture days later. The zoo brought in a firing squad to ...

Many mammal populations in European and North American zoos are aging—a trend that jeopardizes the long-term viability of so-called reserve populations and, with it, a core mission of modern zoos in ...