字幕表 動画を再生する 英語字幕をプリント We all know that beautiful, elegant caterpillars build chrysalises and turn into hideous, nightmarish butterflies. But what happens inside a chrysalis? What creates those little abominations? Here’s what doesn’t happen: caterpillars slowly morph into butterflies, growing wings, eyes, etc in the process. Nope! It’s actually a lot grosser than that: A caterpillar’s own digestive juices dissolve its body, turning it into a soup of proteins with some random body parts thrown in. Aww, caterpillar soup...just like my aunt Sheila used to make! Anyway, that soup also includes cells called “imaginal discs” which grow into butterfly structures like wings while the body re-forms. Bake at 375 on the bottom rack for a few more minutes, and voila, a butterfly! The craziest part is that in spite of turning into goop and back again, butterflies can retain memories from their caterpillar days. Which means that somehow, some nerve connections survive that change. The scientific conclusion here is: don’t be a jerk to a caterpillar, or it’ll hate you forever as a butterfly. Like tiny things that might hate you? Watch my video on viruses. I’m going to play like a second or two of that for you now. So click real fast. Did you miss your chance? Click now to subscribe.
B2 中上級 米 コクーンの中はどうなっているの? (What Happens Inside a Cocoon?) 6029 458 Jack に公開 2021 年 01 月 14 日 シェア シェア 保存 報告 動画の中の単語