字幕表 動画を再生する 英語字幕をプリント Hi, I am Jared, and welcome a Fun Science Demos. Here on location in the sunny, sandy beaches of Delaware. The big idea today is horseshoe crabs. What are they doing? They are all gathered together along the whole shore of these beaches. What are they all doing? They are laying eggs and that is the cool part, it is the story have a horseshoe crab. Right now they are laying eggs but a bigger part of that story is, they have already laid eggs further up the beach. Let us go see if we can find some of those eggs. To find the horseshoe crab eggs, we have to go under the sand. The horseshoe crab will bury herself under the sand and lay her eggs, so we have got to start digging. And I happen to have some hands. What I am doing, is I am digging very gently and I am looking for. clumps of green eggs. Ahhh! I found a tiny clump. Each horseshoe crab lays hundreds of eggs just like this, and each one of these eggs will hatch into a baby horseshoe crab about six to eight weeks from now. So to go from these eggs to this horseshoe crab takes about nine years for them to reach an adulthood. Think about that: nine-years-old. It is the cycle of life, from eggs to adults. If you want to learn more about horseshoe crabs and their green eggs in the sand, check out our links in the video description. Science is so cool. Thanks for watching. Go back home big guy!
B2 中上級 カブトガニのライフサイクル (Life Cycle of the Horseshoe Crab) 45 1 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