Red-crowned cranes are very communal and live in flocks. They are the second rarest species of crane, the whooping crane of North America being the rarest. There are between 1700 to 2000 red-crowned cranes in all of Eastern Asia. It is one of the world's largest birds, and also one of the largest cranes. These cranes are migratory which explains their various types of food they eat. During the spring and summer the cranes fly east to the wetlands in temperate East Asia. This is where they breed. The cranes winter along rivers and in salt and freshwater marshes in Japan, China, and the Korean Peninsula. The red-crowned cranes are generally monogamous, that is, mated birds stay together throughout the year, and even until one bird dies. Both the male and female build the nest. The female usually lays two eggs that hatch at the same time. Once the eggs hatch, the female is more involved with the domestic affairs while the male is responsible for defense. These cranes are considered to be sacred to the Japanese people, and were declared the national Japanese bird in 1952.
最新问答: 托里拆利实验题在托里拆利实验中,玻璃管上方的真空部分对下方的汞液有没有压强,如果有的话为多大? 写一句关于读书的名人名言 三次根号下((x+1)(x-4))+三次根号下((x+2)(5-x))=6的实数解的个数为( ) I found _____ difficult to english grammar. 随着现代高层建筑的迅速发展,电梯已成为人们生活中必不可少的垂直交通工具.当小明乘电梯匀速上升时,他的动能将______, 什么是恒温蒸发 A 55-year-old man deposits $50000 to fund an annuity with an 四年级英语作文5篇短一点不要用太多四年级小学生没学的单词。5 读图,回答11-12题.11.明明所在地的经纬度是( )12.关于图中明明和贝贝的说法,你的判断是( )A.明明说法 水的内能比较急 2mol 的水分子 在300K下的内能是多少 似乎和自由度,分子动能 分子势能以及转动自由能相关能给个具 关于“攒”的读音.“攒”有两个读音,一是cuán,一是zǎn.但字典里的解释都差不多.想问:这两个读音的最大区别是什么? Jack is late again.I 几道函数题1.抛物线y1=ax2+bx+c(a不等于0)与双曲线y2=k/x的图像如图所示,则不等式ax2+bx+c<k 英语翻译This is my room.It is very attractive.It is the pink.Loo 英语翻译i am sorry!you said that is not my want to,so i hope you 根有哪些作用 汉译英 我来这已有两周了 五年级下册语文第七单元口语交际题目是什么? 温度计越精确,则其玻璃泡的容积与细管的容积相差越______(大/小),这是因为____________________ 2-2cosA=sinA 求cosA