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Scientists log rare case of female polar bear adopting cub: ‘They’re really good moms’

Canadian researchers tracking bear known as X33991 noticed she had gained a second cub who likely needed help

The Guardian - US · Dec 17, 2025

The secret lives of polar bear families

Despite being the largest land carnivore and a top Arctic predator that can weigh over 600 kg, polar bears start off surprisingly small. Blind, almost hairless, and weighing just 600g at birth, cubs are born in maternity dens under the snow. These snow caves keep newborns warm and safe for…

The Conversation · Feb 27, 2025

Watch polar bear cubs emerge from their winter den for 1st time on Svalbard

For nearly a decade, researchers have gathered camera footage from outside the dens of female polar bears and their cubs on Svalbard, shedding light on the behaviors linked to denning.

LiveScience · Feb 27, 2025

Polar Bear Population Decline Linked To Greenhouse Gas Emissions For First Time

Scientists think the breakthrough will enable greater legal protection for the species

Zenger · Sep 1, 2023