A polar bear with a light beige coat stands near an ice-filled tub at what seems to be a zoo or wildlife park, surrounded by grassy areas and wooden elements. 1:06

Two polar bear sisters and one tub of ice

There's one tub of ice at the Oregon Zoo and two polar bears who want it. Sisters Nora and Amelia Gray, born a year apart, work it out the way siblings do. more

The tub sits in their yard among grassy slopes and trees, packed with ice and cold water. Both bears put their faces in it to drink.

Two polar bears drink from a pool of ice water inside an enclosure with grassy slopes and trees. A headline runs in white letters across the lower third.Save
Both sisters lean in to drink from the tub of ice water.

The trouble is size. The tub can't hold two polar bears, so the sisters take turns, one in the ice and one on the grass.

Waiting isn't their strong suit. The sister on the outside tries to gnaw her way in while the other one is still playing. It looks harmless, the kind of play fighting that comes with having a sister.

Two polar bears beside a tub filled with ice in an enclosure with grass and wooden structures. A headline runs in white letters across the lower third.Save
The tub only fits one bear, and neither sister wants to be the one outside.

When a bear gets her turn, she goes in nose first. She rolls onto her back, rolls the other way, and pushes her head down into the pile as if she wants to sink even lower. Anyone who has flopped into a pool on a hot day knows that move.

A polar bear with a light beige coat stands near an ice-filled tub at what seems to be a zoo or wildlife park, surrounded by grassy areas and wooden elements. The headline runs in white letters across the lower third.Save
There's one tub of ice at the Oregon Zoo and two polar bears who want it.

Now and then one bear lounges in the icy water while her sister stands close by on the grass. At times it even seems as if the one outside is helping, pushing ice on top of the one inside.

One polar bear lounges in a tub of icy water while another polar bear stands nearby on grassy ground. A headline runs in white letters across the lower third.Save
One bear lounges in the cold while her sister stands by on the grass.

One fan likes that there's no music over the top, so you can hear the ice crunch and the play-fighting sounds of two big bears. Plenty of others have the same note for the zoo. They're going to need a bigger tub.