(TED) 뱀 혀는 왜 갈라져 있을까요?

<p>악어거북은 혈액으로 부풀어오르는 혀를 꿈틀거리는 벌레처럼 위장해 먹이를 유인합니다. 혀로 속임수를 쓰는 동물은 악어거북뿐만이 아닙니다. 동물 왕국 속 혀는 질감, 길이, 모양, 쓰임새 등이 정말 다양합니다. 그렇다면 혀의 모습이 이렇게 다양한 이유는 무엇일까요? 셀라 라이트는 다양한 동물이 생존을 위해 혀를 어떻게 사용하는지 탐구합니다.</p><p><a href="https://www.youtube.com/watch?v=dzX8hvoGtT8" target="_blank" class="ke-link">https://www.youtube.com/watch?v=dzX8hvoGtT8</a></p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=dzX8hvoGtT8" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="868" data-video-height="488" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/C4QUJ/hyXhYWObQZ/akAzyW6CdQgioSPz6RSSv0/img.jpg?width=1280&height=720&face=0_0_1280_720,https://scrap.kakaocdn.net/dn/ciIBXY/hyXd7gPYFD/1f9WTSAvNPZ1KroDPWqkE0/img.jpg?width=1280&height=720&face=0_0_1280_720" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="868" data-video-origin-height="488"><iframe src="https://www.youtube.com/embed/dzX8hvoGtT8" width="868" height="488" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption"></div></div><p> </p><div class="figure-img" data-ke-type="image" data-ke-style="alignCenter" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/EK/2a3e529b6b80a0f7b31585bfd27b34308df3da67" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/EK/2a3e529b6b80a0f7b31585bfd27b34308df3da67" data-origin-width="900" data-origin-height="372"></div>