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

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

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.

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 ...

ST. LOUIS — You can now say "hello" to polar bears Kallu and Kallik at the Saint Louis Zoo! After a weeks-long quarantine and acclimation period, the twin brothers made their public debut on Tuesday.

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

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 ...

After nearly a decade of trying to learn details about polar bears’ denning habits in the Arctic, researchers have captured cubs emerging from dens on video for the first time. The footage was ...

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 ...