Why Porcupines Don’t Get Hurt by Their Own Quills 🦔🩹

Porcupines can accidentally poke themselves — but they don’t get infections. 🦔 That’s because North American porcupines have evolved with a built-in safety system. Their quills, over 30,000 of them, are hollow hairs tipped with microscopic barbs that hook easily into skin. Unlike African porcupines, though, their quills are coated with a natural waxy grease that works like an antibiotic. So even if they fall from a tree and land on their own spines, they stay safe. Scientists at Harvard are now studying these barbed, self-healing designs to create better surgical staples — inspired by one of nature’s cleverest defenses. 🎁 Explore my hand-picked gear, books, and gifts for animal lovers → https://www.amazon.com/shop/animaldoozy I earn a small commission at no extra cost to you on these affiliate products. Discover fascinating animal facts and science in fun videos. Subscribe to Animal Doozy and explore my Amazon storefront!