Red is the warmest color
Outside/In4 Mars

Red is the warmest color

There’s few certainties in life. But the sun will always rise, the seasons will change, and the Outside/Inbox will forever remain answered. From lighthouse paint hues to polar bear lovers, this week the team takes up your questions on all things red. What makes cardinals red? Why do albino animals have red eyes? ⁠ ⁠Why are so many lighthouses painted red? ⁠ Do our dogs love us? ⁠Do some animals have same-sex relationships?⁠ ⁠How do environmental changes affect pair-bonding? ⁠ Featuring Alex Funk, Jeremy D'Entremont, Karyn Anderson, and Francesco Ventura. Thanks to Outside/In listeners Liz, Tyler, Monica and Lera for their questions. We’re looking for new submissions to the Outside/Inbox! Give us your weirdest, nichest, most bizarre questions you can think of. Send us those questions by recording yourself on a voice memo, and emailing that to us at outsidein@nhpr.org. Or you can call our hotline: 1-844-GO-OTTER. SUPPORT Outside/In is made possible with listener support. ⁠Click here to become a sustaining member of Outside/In. ⁠ Follow Outside/In on ⁠Instagram⁠ and ⁠BlueSky⁠, or join our private ⁠discussion group on Facebook⁠. LINKS Here’s Karyn’s paper on how ⁠same-sex behavior⁠ in animals is far more common than previously thought. Olney, Illinois is known as “the home of the white squirrels.” Learn more about ⁠how they’re trying to protect these rare albino animals⁠ in this small Midwest town. Here’s the ⁠Northeast District’s 2025 US Light List⁠, which lists an astounding 40,000 different lights, sound signals, and other visual aids to navigation. Francesco Ventura’s paper analyzing divorce rates in albatrosses came out in 2021. ⁠You can find it here⁠. CREDITS Produced by Marina Henke, Felix Poon and Nate Hegyi. For full credits and transcript, visit outsideinradio.org Learn more about your ad choices. Visit megaphone.fm/adchoices

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