The bones of a pigeon weigh less than its feathers. ……

MANY birds?feathers (羽毛) weigh more than their bones. ……

gland is where chickens produce pigment (色素). Different species (种类) of chickens have different ……

prevent them from entering their bodies, where they could cause more damage. This is why..., where they could cause more damage. This is why there are more darker birds in urban areas ……

.For many years he lived in a sprawling country house in Kent, Connecticut, where he took inspiration ……

昆虫总动员Where is the feather?An insect has three body parts: head, abdomen (腹部) and thorax (胸腔). It also has six legs, wings and antennae (触角).In the animal kingdom1, insects2 are the largest group ……

昆虫总动员Where is the feather?An insect has three body parts: head, abdomen (腹部) and thorax (胸腔). It also has six legs, wings and antennae (触角).In the animal kingdom1, insects2 are the largest group ……

. If the floating (漂浮的) ice where baby penguins live melts before they grow new feathers, they might... changed. If the floating (漂浮的) ice where baby penguins live melts before they grow new feathers ……

for it. It’s not there.The goose tells the goat about the lost3 feather. They look all over the goat’s house for it. It’s not there.The goose and the goat tell the girl about the lost feather.The goose ……

Does a duck have ears? Yes! They are in the duck's feathers (羽毛). 这样小虫子就钻不进去了。. ……

“HOPE” is the thing with feathers That perches (栖息) in the soul And sings the tune without the words And never stops at all By Emily Dickinson(American poet, 1830 – 1886). ……

Hope“Hope” is the thing with feathersThat perches (栖息) in the soulAnd sings the tune without the wordsAnd never stops at all. By Emily Dickinson (American poet, 1830-1886). ……

In Australia, there are some poor penguins. Because of sea pollution (污染), they have toxic (有毒的) oil on their feathers. The oil can harm their feathers. ……

with theirbeaks(鸟嘴)!Where is the best place for baby emperor penguins to have a sleep? A bag-like part ……

奥运知识有奖竞赛
Ok! Now we know a lot about the Olympic Games. How much do you remember? 来做个测试吧！1. Where did the ancient Olympic Games start?A. Greece B. Egypt C. India2. Which of the sports below appeared（出现 ……