National Zoo

Making a historic record—only the third time in the United States—Mei Xiang delivers twins.

Breeding Pandas Is Incredibly Hard

The National Zoo's newborn panda twins are practically miracles.

The smallest cub, which weighed just 86 grams at birth, is seen here being hand-reared with bottle formula feedings.

Panda Update: Giant Panda Mom Mei Xiang Won't Exchange Care of Cubs

Smaller cub is receiving infant formula and fluids from Zoo veterinarians

Mei Xiang delivers twins, a historic record—only the third time in the United States.

A Second Panda Cub is Born at the Zoo (New Pictures)

After giving birth to one cub, the Zoo's 17-year-old female panda, hours later, delivers a second cub

Screen grab from Panda Cam

BREAKING: A Panda Cub is Born at the National Zoo (Video)

The 17-year-old female giant panda Mei Xiang gives birth

Ask Smithsonian: Why Do Flamingos Stand on One Leg?

Flamingos may be doing their one-legged tree pose to stay warm or just because it's comfortable

Veterinarians detected what they believe is a developing giant panda fetus in an ultrasound procedure on giant panda Mei Xiang. Based on the size of the fetus, which is about four centimeters, officials say that Mei Xiang could give birth early next week, or possibly in early September.

Panda Cub (Or Is It Bamboo?) Detected in Mei Xiang's Ultrasound

Breeding pandas is complicated and frustrating. The Zoo's female Giant Panda has delivered two healthy cubs in the past ten years

When a Trip to the Zoo Resulted in an Engineering Breakthrough

Megan Leftwich, an engineering professor at George Washington University, is building a robotic flipper based on her observations of sea lions

Maker’s Week at the Zoo is Business as Usual

When the right product doesn't exist for a fish ultrasound or other procedure, scientists build it themselves

Ask Smithsonian: What Makes Skunk Spray Smell So Terrible?

When the omnivorous cat-size mammals take aim, the malodorous spray can hit with pin-point accuracy up to 20 feet away

This second hatchling is even more notable for the emergency efforts that the animal keepers took to keep it alive.

UPDATE: Second Critically Endangered Tortoise Hatches from a Cracked Egg

To get the critically endangered Madagascar spider tortoises to breed successfully took both tenacity and a whole lot of luck

The sperm, taken from a nine-year old panda named Hui Hui will be used to impregnate the Zoo’s 16-year-old female panda Mei Xiang (above).

To Transport Frozen Panda Semen From China, Zoo Officials Went All the Way

After consulting a "stud book," the Zoo brought a male panda's sperm back to D.C., setting an exciting precedent

Nicole MacCorkle, a giant panda keeper at Smithsonian's National Zoo, says the animals have taught her about parenting.

What Giant Pandas Taught Me About Parenting

When animal keeper Nicole MacCorkle became a parent, she looked to Bao Bao's mother for inspiration

For the first time in more than a decade, bison will roam at the National Zoo.

The Historic Return of the American Bison

A National Zoo exhibition featuring the animal, long tied to Smithsonian history, opens Saturday

How Does Bao Bao Celebrate Her Birthday? With Cake, Bamboo and Hundreds of Fans

The National Zoo hosted a traditional Chinese ceremony for the giant panda’s first birthday

Celebrate Bao Bao's Birthday With a Party and This Recap of Her First Year

Hot off her recent win in the Smithsonian Summer Showdown, D.C.'s favorite panda celebrates her first birthday on August 23

Shama, a red panda at the National Zoo, died August 16.

Shama, the Red Panda, Has Died

Shama, a red panda at the National Zoo, died on Saturday

David Graham, rear, with John Tee-Van, front, with one of the young pandas.

How an American Missionary Helped Capture the First Panda Given to the U.S.

"Missionaries sometimes have to tackle strange and unusual jobs," David Graham wrote.

Giant pandas Hsing-Hsing (left) and Ling-Ling frolic at the National Zoological Park near Washington, DC. Photo circa 1974.

Don't Worry Mr. Nixon, the National Zoo's Pandas Figured Out How to Have Sex

President Nixon wanted to make sure Ling-Ling and Hsing-Hsing had enough time to "learn the ropes"

Lion cubs at the National Zoo.

Zoo's Four Lion Cubs Meet Their Adoring Fans

The 14-week-old cubs are set to tumble-bumble out in their yard to greet their adoring fans

Two red panda cubs were born at the the Smithsonian's Conservation Biology Institute last week.

Squeee! Red Panda Cubs Born at Smithsonian Conservation Biology Institute

Last week, the facility welcomed two new balls of fur to their resident red panda community

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