Abert's Squirrel

Fascinating facts about the Abert's Squirrel

• Those ear tufts aren't decoration — they're heat dissipators. Abert's squirrels can flush blood into them to dump excess warmth, or constrict them in cold to conserve it. In winter, the tufts grow thicker and longer, sometimes reaching 1.5 centimetres. It's a living thermostat on their head.
• A single squirrel can strip and eat the inner bark from a ponderosa pine in minutes, killing a 30-metre-tall tree that took 150 years to grow. They're not pests by accident — they've evolved specifically to exploit the one tree that dominates their entire world. When bark beetles later infest the damaged tree, the squirrel's destruction becomes a double death sentence.
• Abert's squirrels have a split into two colour morphs living in the same forest: some are jet black, others rust-red. Scientists long thought they were different species. The split happened only in the last 10,000 years, making it one of the fastest colour divergences ever recorded in mammals — driven by sexual preference, not survival pressure.
• They bury pine cones with such precision that they create a mental map of thousands of caches across kilometres of forest. But they forget about 10 to 20 percent of them every winter. Those forgotten cones sprout into young ponderosa pines. The squirrel is accidentally replanting its own forest.
• A litter of Abert's squirrels is born naked and helpless in a nest 20 metres up a ponderosa pine. By 10 weeks old, the mother evicts them — literally drives them away. They must survive alone, find their own territory, and defend it against other squirrels in a forest where resources are scattered across vast distances. Survival to adulthood is below 30 percent.

At a glance

About the Abert's Squirrel

In the sun-dappled forests of the American Southwest, the Abert's Squirrel navigates its arboreal realm with effortless agility, its grey and white fur blending seamlessly with the dappled tree trunks as it leaps from branch to branch with a fluid, almost ethereal, motion. With its distinctive tufted ears and bushy tail, this charismatic creature embodies the very essence of the woodland ecosystem, its busy, inquisitive nature a testament to the rich biodiversity of its native habitat. As it forages for seeds and nuts, its nimble paws barely making a sound on the rustling leaves, the Abert's Squirrel is a captivating embodiment of the wild beauty that thrives in these ancient, whispering woods.

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