信不信由你
Can birds fly backwards (向后)? Only hummingbirds (蜂鸟) can. ……

Can birds fly backwards? Only hummingbirds (蜂鸟) can. ……

信不信由你
Bats (蝙蝠) can fly. Are they birds? No, they are mammals (哺乳动物). ……

Hummingbirds (蜂鸟) are the only birds in the world that can fly backward. ……

. They spread their white wings and flew freely in the sky. I took this picture to record the fantastic... graceful (优雅的) scene appeared in my mind and I felt like I was flying with the birds. I thought ……

令人心跳加速的空中泳池。Birds fly in the sky, and you can swim in the sky too. There is a Sky Pool in Texas, US... and swim freely. TEENS ……

’d want a pair of wings (翅膀) so I could fly as freely as the birds. Flying might be a bit like.... If I could have a magic power, I’d want a pair of wings (翅膀) so I could fly as freely ……

Can you help the baby birds out of thenest(鸟巢) so they can fly? ……

Q: Why do birds fly south (向南方) for the winter?A: Because it's too far to walk! ……

) with energy. Birds sing sweet songs and work hard to build cozy nests for their eggs. In ponds and lakes, frogs croak (呱呱叫) happily, while ducks swim freely. Bees buzz from flower to flower. Butterflies ……

, up to 3 million of us have been taken away. We don’t want to be pets. We want to fly freely...’t want to be pets. We want to fly freely with our families. Have a goHave a goFill ……

the science behind how birds fly.Birds travel thousands of kilometers to migrate in winter. When traveling in groups, they form various shapes in the air. Let’s check out the science behind how birds ……

秋天里的鸟儿Autumn is a season for many birds to travel1. They fly from the cold north to the warm south. So, kids in the north can’t see birds in autumn? No, some birds don’t travel. They stay. Let’s see ……

阅读文章，回答下列问题：1. When you whistle to the birds, what will they do?2. How high can the racing car fly?Answers: 1. The birds will sing. 2. The racing car can fly up to 60 meters. ……

《愤怒的小鸟大电影》You must know about Angry Birds. But you may not know why they are so angry. Let’s find... takes us to Bird Island. Birds live happily on the island. They can’t fly. But they do not think ……