America's National Parks
Gates of the Arctic National Park in northern Alaska is one of the last untamed places on Earth.
Gates of the Arctic National Park in northern Alaska is one of the last untamed places on Earth.
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Koalas, lions, siamangs and others compete for the most boisterous bellow.
Sydney's Taronga Zoo welcomes royalty back; pygmy marmosets show off their big personalities.
Nala, the Australian sea lion, gives birth to a healthy pup; the zoo prepares to welcome zebras.
Tiger Kartika starts to act aggressively towards her cubs; Larry helps a seal.
Keepers at Taronga's zoo in Dubbo welcome a baby hippo to the herd.
Taronga Zoo's staff releases endangered bilbies to their natural habitat.
Two squirrel monkeys arrive in Taronga with a clear goal, to mate with as many females as possible.
Taronga Zoo's new African Savannah Precinct welcomes its residents.
Naomi the chimp overcomes a medical condition and finally becomes a mom.
An abscessed tooth turns nasty for an aging sheep; Lulu the giraffe has her baby.
A python with killer back pain; a shy lion; a bear with a gnarly cough.
It's raining baby giraffes; two camel brothers embark on a new life.
A moose with a cough; a cheetah with nine lives.
A scrawny sea lion pup, a bat with holey wings and zebra spa day.
Adventure Cove opens with a sea lion brigade; vets see a loris and iguana.
Patients include a koala, a rhino, reindeer, a bear cat and a saucy monkey.
A flamingo fights for its life, a cheetah gets a biopsy and keeper love abounds.
Sapo the Komodo dragon doesn't like to be poked with a needle; a rare pangolin pregnancy unfolds.
Two baby white rhinos join the herd; a pair of red pandas have a blind date in a tree.
The team meets a baby rhino; seeing a polar bear birth; comforting a rare bird named Marla.
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