
Decoding four billion years of evolutionary mysteries, Neil Shubin's acclaimed work reveals how ancient viral infections shaped mammalian placentas and human brains. Praised by paleontologist Steve Brusatte as "an engrossing account from a brilliant scientific storyteller at the height of his talents."
저자의 목소리로 책을 느껴보세요
지식을 흥미롭고 예시가 풍부한 인사이트로 전환
핵심 아이디어를 빠르게 캡처하여 신속하게 학습
재미있고 매력적인 방식으로 책을 즐기세요
Here's a puzzle that stumped scientists for generations: How could a fish possibly evolve to walk on land? The transformation seems impossible-you'd need legs instead of fins, lungs instead of gills, and entirely new ways of feeding and reproducing. What good are legs if you can't breathe air? But evolution rarely works the way we imagine. The secret lies in a simple truth: biological innovations don't emerge when we need them. They appear long before, serving completely different purposes, waiting to be repurposed. Lungs existed before land animals. Feathers evolved before flight. And limbs developed before anything walked. Our bodies are museums of repurposed parts, each telling stories of ancient creatures that lived millions of years before us. When Napoleon invaded Egypt in 1798, his scientists discovered something extraordinary: fish that could breathe air. The bichir possessed both gills and air sacs connected to its throat, allowing it to gulp oxygen through holes in its skull. Later explorers found similar creatures in the Amazon and Australia-air-breathing fish that had existed globally for hundreds of millions of years. This discovery shattered assumptions about evolution. We assumed lungs evolved for land, but they actually originated in water. Fish developed air-breathing organs not to survive on land but to endure oxygen-poor ponds and swamps. The swim bladder-that balloon-like organ helping fish maintain buoyancy-and lungs develop from identical genes budding from the gut tube in embryos. They're the same structure serving different purposes. When ancient fish eventually crawled onto land, they weren't inventing something new. They were simply using equipment they already possessed in a different environment.
Some Assembly Required의 핵심 아이디어를 이해하기 쉬운 포인트로 분해하여 혁신적인 팀이 어떻게 창조하고, 협력하고, 성장하는지 이해합니다.
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