For the first time since 2014, keepers at the Smithsonian’s National Zoo and Conservation Biology Institute (NZCBI) have welcomed two sloth bear cubs. The cubs were born Dec. 7 at approximately 2:30 ...

For the first time since 2014, keepers at the Smithsonian’s National Zoo and Conservation Biology Institute Zoo have welcomed two sloth bear cubs.

Talk about ending the year on a high note.The Smithsonian’s National Zoo closed out 2025 with a rare double dose of good news, welcoming two sloth bear cubs for the first time in more than a ...

The tiny cubs, currently off-exhibit, are expected to debut in Spring 2026. Mike Bock Nearly one month old, the two sloth bear cubs are shown resting in their den on Jan. 5, 2026. Zoo staff are ...