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National Zoological Park’s Janine Brown and a team of collaborators have just completed

Echo’s 6.5-month-old cheetah cubs’ world is growing, just as they are all growing stronger and larger too. Catch the full cubdate from biologist Adrienne Crosier.
Amber Dedrick Image: Echo’s 6.5-month-old cheetah cubs‘ have recently learned

Amani’s two male cubs are one month old, ready to play and are back making appearances on the Cheetah Cub Cam! Read on to find out just how mobile these cubs are and don’t miss two adorable videos of them playing.
Lucky Cheetah Cub Cam viewers may have witnessed the cubs wrestling last week in

This Amphibian Week, take a closer look at what makes these species so wonderfully weird and worthy of our attention.
May 02, 2025 Happy Amphibian Week 2025 Have you ever strolled past an animal’s

On Father’s Day weekend, Shera’s four cubs made their big debut at the Great Cats exhibit! Now, visitors can see the whole pride every day between 11 a.m. and 1 p.m. weather permitting. Animal keeper Rebecca Stites gives us the latest update on the cubs.
What’s the next big ‚event‘ they have to look forward to?

The Zoo has a new troop of seven monkeys! It’s a mixed-species group of guenons. Learn all about our new monkeys, and about guenons, in this Q&A with primate curator Meredith Bastian and keepers Alexandra Reddy and Elliott Rosenthal.
What species of guenons do we have here?

Siamangs are arboreal, black-furred gibbons native to the Malay Peninsula and Sumatran rain and monsoon forests. They are the largest of the gibbons and use their throat sacs to vocalize, making a deep boom or high-pitched „wow“ sound. 
Males have a longish tuft of hair in the genital region.

The Persian onager — also called the Asiatic wild ass, the Persian wild ass and the Persian zebra — is the largest of the four subspecies of Asiatic wild ass (the most horse-like ass species). It’s native to the desert of Iran and has a pale, sandy-red colored coat.
In addition to the dorsal stripe, onagers also have a shoulder stripe.

A supersized salamander recently debuted at the Smithsonian’s National Zoo’s Reptile Discovery Center. Get the scoop on these freshwater giants from keeper Kyle Miller.
Japanese giant salamanders breathe through their skin, have impossibly small eyes

The Smithsonian’s National Zoo and Conservation Biology Institute is committed to preserving Asian and African elephants—both in human care and in the wild. As part of this mission, the Zoo researches diseases that afflict elephants, such as the elephant herpesvirus, known as elephant endotheliotropic herpesvirus (EEHV). Researchers at the Smithsonian’s National Zoo were the first to identify EEHV in 1995, following the death of our 16-month-old Asian elephant, Kumari, who was Shanthi’s first calf.
Since then, these researchers have made significant discoveries on the biology of