食管痉挛怎么样会好:生活科学每日一图:丰富多彩生物的大胆时尚(2011年9月21日)

来源:百度文库 编辑:九乡新闻网 时间:2024/04/28 15:55:50

图片专辑:每日精彩图像

Bold Fashion From a Colorful Critter

丰富多彩生物的大胆时尚

Credit: Luiz A. Rocha, Shutterstock

提供者:路易斯.A·罗查(Luiz A. Rocha),图片素材

This harlequin shrimp isn't clowning around (yeah, yeah, cue groans). Hymenocera elegans here is found in the waters off of Indonesia. Popular among aquarium enthusiasts for their bright colors, harlequin shrimp are nonetheless tough to care for in a tank. One reason is their diet: They eat only starfish (and sometimes sea urchins), and they reportedly prefer to eat them alive. Since the prey is so much larger than the predator, it sometimes takes the shrimp two weeks to finish off a single (living) starfish. No wonder people thing clowns are scary.

 



这些小丑虾是不是在到处胡闹(是,是,暗示着抱怨)。它们是在印尼附近的海域里发现的鳕鱼的线虫。尽管水族馆的发烧友们喜爱小丑虾的鲜艳色彩,可是它们仍然很难喜欢住在这水槽里。原因之一是它们的饮食:它们只能吃到海星(有时是海胆),据报道它们喜欢吃活的。由于被捕食的动物要比捕食它们的掠夺者大得多,有时需要两个星期才能让小丑虾去吃完一个活海星。难怪人的事情会使小丑虾提心吊胆。