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A northern leopard frog in the grass

Endangered frogs hop from Oregon Zoo back into wild

More than a hundred northern leopard frogs reared at the Oregon Zoo are hopping back into the wild this month, thanks to a collaborative effort to save one of the last remaining Northwest populations.

August 23, 2022

Oregon silverspot butterfly on dandelion

Zoo releases thousands of rare butterflies into wild

The 2,172 rare insects marked the biggest-ever silverspot release at Saddle Mountain.

July 12, 2023

A condor chick and parent together in a nest box

Zoo wraps up successful condor season

Hatching season wrapped up last week at the Oregon Zoo's Jonsson Center for Wildlife Conservation.

June 7, 2023

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Black fuzzy larval caterpillar of the checkerspot butterfly on a green plant leaf.

Zoo raises record number of endangered Northwest butterflies

Zoo conservationists roused 5,398 Taylor's checkerspot larvae from their winter dormancy, transferring the very hungry caterpillars into rearing cups at the zoo's Imperiled Butterfly Conservation Lab.

March 8, 2019

Two young elephants wade into water as a larger elephant stands on snow-covered group behind them.

Caring for elephants in cold weather

Like all mammals, Asian elephants heat and cool their bodies through an internal process called thermoregulation.

March 7, 2019

A harbor seal with fresh snow on its face and whiskers lays on snow at the Oregon Zoo.

Snow days bring the animals a new world to explore

Some species are winter specialists, others are just curious, and choose come out to explore.

February 8, 2019

A person wearing protective gloves holds a hedgehog while another person touches its head.

On Groundhog Day, zoo 'hedges' its bets for an early spring

Punxsutawney Phil may hog most of the attention on Feb. 2, but Oregon Zoo traditionalists say a young hedgehog known as Nancy is actually the one to watch.

February 1, 2019

Sumatran orangutan Inji

World's oldest orangutan turns 59 at Oregon Zoo

The Oregon Zoo's oldest resident, ultra-geriatric Sumatran orangutan Inji, turned 59 this month. She is thought to be the oldest orangutan in the world.

January 30, 2019

A California condor flies over Pinnacles National Park.

Saving California condors: A Q&A with Kelli Walker

At one point, there were only 22 California condors left on Earth. Today there are nearly 500, thanks to a species-recovery effort spearheaded by four organizations, including the Oregon Zoo.

January 27, 2019

Adult female checkerspot butterfly in the Butterfly Lab.

Oregon Zoo's 'Critter Club' camps begin in February

Beginning Feb. 9, kids ages 3 to 5 (and parents in some cases) can enjoy the Oregon Zoo's newest camp offering: Critter Club.

January 17, 2019

Aerial image of reforestation in Borneo.

Coexisting with Borneo elephants: A Q&A with Marc Ancrenaz

Elephants and the palm oil industry come head-to-head in the Kinabatangan floodplain – a region of great importance for biodiversity and Malaysia's economy.

January 15, 2019

Zoo offers free entry for furloughed federal employees

The Oregon Zoo is offering free admission for furloughed federal employees and their families during the partial government shutdown.

January 10, 2019

One person holds an African painted dog while another person uses a stethoscope to listen to their heart.

Pupdate: It's 6 girls and 6 boys for painted dog Ella!

Veterinarians and animal-care staff conducted their first examination of Ella's 8-week-old pups at the Oregon Zoo today.

January 10, 2019

Three young African painted dog pups peer over the edge of a moss-covered rock.

Zoo forecast: Cloudy with a slight chance of pups

Ella’s pups have begun to explore the outdoor portion of the Oregon Zoo’s African painted dog habitat, but only for short periods and not according to a set schedule, animal-care staff said.

December 27, 2018

A sea otter with white and gray fur floats on its back in the water with its paws extended.

Zoo says goodbye to Eddie, the slam-dunking sea otter

The Oregon Zoo's slam-dunking sea otter was humanely euthanized this morning following a decline related to his advanced years.

December 20, 2018

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