are especially valuable to the genetic diversity of polar bears in human care. Kallik and Kallu, born in 2022, are Crystal's cubs. "Kali is a special bear beloved by so many people here in St ...

Kallik and Kallu made their public debut at the St. Louis Zoo on March 25. Kallik and Kallu: The twin polar bear brothers are ...

Polar bears are some of the Arctic's most iconic animals, yet their lives remain something of a mystery. Now, incredible footage has offered a glimpse at these majestic creatures and their cubs ...

It’s a big world out there, especially for polar bear cubs emerging from their dens. An international team of researchers observed these special first steps thanks to nearly a decade of camera ...

In return, the Toledo Zoo sent Crystal’s twin 2-year-olds ... Crystal has had nine cubs, but is nearing the end of her reproductive years. Polar bears can mate into April, Macek said.

Two-year-old twin polar bears Kallik (pronounced Kah-LEEK), left, and Kallu (Kah-LOO) take a swim during their public debut ...

Newborn polar bear cubs are currently snuggled in dens with their mothers across the Arctic. Polar bears typically give birth around New Year, at which point the cubs are blind, hairless, and just ...

Like humans, some protective mothers in the animal kingdom, such as Orangutan, Polar Bear, and African Elephant, serve ...

Polar bear cubs are incredibly cute — and amazingly elusive. Their mothers dig dens under the snow in remote areas. Protecting cubs is key to the species’ survival. Under half of all polar bear cubs ...

She’s had nine cubs. It’s bittersweet and sad to ... the Saint Louis Zoo received Crystal’s twin son polar bears, Kallu and Kallik—whose names mean thunder and lightning, respectively ...

Polar bear cubs in the Arctic are beginning to emerge from their dens. Until now, the babies have been relying on nutrients from their mother's milk to go from hairless, blind cubs to bears ready ...