美国科学60秒 SSS 2013-06-28
时间：2018-12-24 作者：英语课 分类：Scientific American(六)月
Plants can choose where their seeds end up. Some float on the winds, others on the water. Many seeds hit the ride on or inside animals. And the farther seeds get from their parents and any predators 2 of the disease the parent might have, the better chance of survive, or so the theory goes. Researchers study that phenomenon in the South America chili 3 pepper () which releys on birds like fly catchers just spread the seed. To get realistic samples, researchers plot chili seeds from the droppings of captive fly catchers, then they scatter 4 them near and far from wild chili bushes in Bolivia. Contrary to the prevailing 5 theory, distant seeds fared no better than seeds beneath chili plants. But it turns out that the trip through the birds gives the seeds different competitive edge. The passage strips them of the predator 1 attracting chemicals and pathogenical fungal which quite (rip) off the seeds survivor 6 rate compared to their undigested counterparts. The results appear in the Journal of Ethology letters. So even though these chili seeds don't need to go the distance to survive, you might see that the seeds in the bird is worth about a fur on the bush.
- The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物。
- Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物。
- birds and their earthbound predators 鸟和地面上捕食它们的动物
- The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
- He helped himself to another two small spoonfuls of chili oil.他自己下手又加了两小勺辣椒油。
- It has chocolate,chili,and other spices.有巧克力粉，辣椒，和其他的调味品。
- You pile everything up and scatter things around.你把东西乱堆乱放。
- Small villages scatter at the foot of the mountain.村庄零零落落地散布在山脚下。
- She wears a fashionable hair style prevailing in the city.她的发型是这个城市流行的款式。
- This reflects attitudes and values prevailing in society.这反映了社会上盛行的态度和价值观。