small striped mammal
Gut Microbes Help Ground Squirrels Endure Hibernation
By breaking down urea, the animals’ gut bacteria recycle nitrogen, which can be then used to build new molecules during prolonged fasting.
ABOVE: ROBERT STREIFFER
Gut Microbes Help Ground Squirrels Endure Hibernation
Gut Microbes Help Ground Squirrels Endure Hibernation

By breaking down urea, the animals’ gut bacteria recycle nitrogen, which can be then used to build new molecules during prolonged fasting.

By breaking down urea, the animals’ gut bacteria recycle nitrogen, which can be then used to build new molecules during prolonged fasting.

ABOVE: ROBERT STREIFFER

Squirrel

How Squirrels Use Bird Chatter to Assess Safety
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An undergraduate research project finds the animals are tuned in to reassuring information from other species.
Squirrels Listen to Birdsong for Safety Cues
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Eastern gray squirrels appear to ease up on vigilance behavior when the birds sound calm.
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Under UV light, flying squirrels give off a rosy glow.
Behavior Brief
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A round-up of recent discoveries in behavior research