• Tue. Oct 20th, 2020

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  • Hummingbirds in the Andes Go to Chilly Extremes for a Good Night’s Sleep | Smart News

Hummingbirds in the Andes Go to Chilly Extremes for a Good Night’s Sleep | Smart News

Hummingbirds in the Andes mountains don’t fight the cold, they embrace it. New research published this week in the journal Biology Letters shows that some species of hummingbirds let their…