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Twenty-seven million years before the first human was born in Africa, North America teemed with more than 25 species of dog-like animals. It was the heyday of dogs; never before or since has there been such a level of diversity among these animals. But scientists are still figuring out how we got...

As economic expansion and development fragments the forest landscape of central India, the species that rely on that habitat—including endangered tigers and leopards—face dwindling populations and increased competition for food and resources. Smithsonian Conservation Biology Institute scientists...

Scientists at the Smithsonian's National Zoo have confirmed a secondary rise in urinary progesterone in Mei Xiang. The rise indicates that she will experience the end of a pseudopregnancy or give birth to a cub in 40 to 55 days. Mei Xiang was artificially inseminated twice March 30 after natural...

Scientists at the Smithsonian's National Zoo confirmed a secondary rise in urinary progesterone in its female giant panda Mei Xiang. The slow rise, which started around mid-July, indicates that she will experience the end of a pseudopregnancy or give birth to a cub in 40 to 55 days. Mei Xiang was...

Hank has been very active in the yard despite the heat. It's not unusual to see him running all over the yard, climbing every tree, and then playing in the pool. After about an hour or two running around the yard in the morning he and Hana normally settle down for a nap in the shade of the doorway...

Giant panda fans can tune into the panda cams, sponsored by the Ford Motor Company Fund, at the Smithsonian's National Zoo once again. The cams went dark for upgrades May 30 but will begin streaming live uninterrupted video today at noon. The panda cam system upgrades were designed to maximize the...

Fans of the giant pandas at the Smithsonian's National Zoo can once again access the panda cams, sponsored by the Ford Motor Company Fund. The cams went dark for upgrades May 30 but will begin streaming live uninterrupted video today at noon. The panda-cam system upgrades were designed to maximize...

The National Zoo's senior female cheetah, Tumai, died overnight. Preliminary results from a necropsy indicate that a tumor caused her spleen to rupture; however, a final pathology report will provide more information. She was 13 years old. Typically, female cheetahs in human care have a median...

Asia Trail curators and zoo staff have determined the sex of eight-week-old fishing cat kitten Wasabi—and it's a boy! Zoo veterinarians gave Wasabi a clean bill of health after performing a complete physical exam July 10 which included: listening to the kitten's heart and lungs; checking his mouth...

We know many of you miss watching Mei Xiang and Tian Tian on our panda cams. We want you to know we're working hard to get them up and running! As with many technical projects, we've hit some unanticipated delays. Primarily, we're having issues with the new consoles and getting the audio system to...

WHAT: Red panda Rusty—who temporarily left his enclosure at the Smithsonian's National Zoo June 24, 2013—will return to his exhibit tomorrow. Staff will move Rusty from the hospital into a behind-the-scenes holding area at his enclosure. Media will see Rusty transported in a crate. When staff...

Hank is doing really well in the exhibit. He has explored a lot of it, but not yet all of it. The exhibit is gigantic, especially compared to a 6-month-old sloth bear. He explores a little more of the exhibit each day. He put his feet in the pool several days ago, and he's already figured out how to...

Our fishing cat kitten has a spicy personality—and a name to match! Animal care staff has given the kitten the name "Wasabi." Wasabi recently had his/her first fishing lesson with mother Electra. A patient mother, Electra waited until Wasabi was paying attention. She showed her kitten the art of...

Red panda, Rusty, continues to do well and Zoo veterinarians have confirmed that he is in good health following his rabies booster vaccination. He will remain at the hospital, but Animal Care staff hopes to return Rusty to his enclosure by July 4. A multi-disciplinary team of Zoo experts, led by...

Bozie, a 37-year-old female Asian elephant, made her debut in the Elephant Community Center today. She arrived at the Zoo on May 22 and spent 30 days in quarantine per standard procedure. Introductions between Bozie and her two female companions—Ambika (65) and Shanthi (38)—continue to go well...

Bozie, a 37-year-old female Asian elephant, made her debut in the Elephant Community Center today. She arrived at the Zoo on May 22 and spent 30 days in quarantine per standard procedure. Introductions between Bozie and her two female companions—Ambika (65) and Shanthi (38)—continue to go well...

The popular Pizza Playground at the Smithsonian's National Zoo has a new recipe thanks to a $110,000 donation from Ledo Pizza and donations from Friends of the National Zoo. The new playground, which has been closed for the past several weeks for renovation, will reopen to the public June 29 at noon...

The onset of summer for animal care staff at the Smithsonian Conservation Biology Institute in Front Royal, Va., means patiently awaiting endangered-animal births, hand-raising youngsters and saying farewell to cubs that are ready to be matched with mates. This year, SCBI-Front Royal celebrated its...

The daring and adventurous sloth bear cub, Hank, made his public debut at the Smithsonian's National Zoo today. He is the first sloth bear born at the Zoo in seven years. Born Dec. 19, 2012, Hank and his mother, Hana, have spent the past six months in a den near the Asia Trail exhibit. Now that he...

The daring and adventurous sloth bear cub, Hank, made his public debut at the Smithsonian's National Zoo today. He is the first sloth bear born at the Zoo in seven years. Born December 19, 2012, Hank and his mother Hana have spent the past six months in a den near the Asia Trail exhibit. Now that he...

The hottest tickets in town are to see cold-blooded animals at the Smithsonian's National Zoo. Tickets are on sale for exclusive tours of the Zoo's Reptile Discovery Center. The tours include a guided stroll through the Reptile Discovery Center with a Zoo Salamander Ambassador filled with fun facts...

WHAT: Sloth bear cub, Hank, will make his media and public debut in his yard with mother Hana. WHEN: Thursday, June 20, 9:30 a.m.—10:30 a.m. WHO: Mindy Babitz, Asia Trail keeper, Smithsonian's National ZooStacey Tabellario, Asia Trail keeper, Smithsonian's National Zoo WHERE: Sloth Bear exhibit (top...

This week we have started letting our keeper aides meet the fishing cat kitten—as you can see, Electra's pretty relaxed about the whole process, but is definitely keeping an eye on things. In this photo, Electra actually brought the kitten up to the mesh and deposited it there for social time! The...

Tickets are now on sale for the annual Brew at the Zoo event, held on Thursday, July 11, 2013 from 6 to 9 p.m. Hosted by Friends of the National Zoo, the beer tasting fundraiser showcases craft and microbrewers from around the nation, all in support of wildlife conservation. Being able to taste over...

Our fishing cat kitten, born May 17, is growing fast! The kitten and its mother Electra are bonding in an off-exhibit area. Keepers have been monitoring the pair closely. A few days ago, Electra was comfortable with the keepers separating her and her kitten for a few moments while they weighed—750...