Culture and DIscovery
Birdy burps and feathered farts
YOU may have heard a dog or a cow fart (放屁), but can you remember the last time you heard a bird fart? The question is, do birds ever fart?
“It’s not that they can’t. They just don’t need to,” said Mike Murray, a veterinarian (兽医) at the Monterey Bay Aquarium in California.
- 对本期电子报订户、有效期内的VIP教师会员和本学期高二尊享卡用户，我们开放所有内容：
- 如果您拥有以上权限，请点这里登录；
- 订阅电子报，请点这里；
- 激活VIP教师卡，请点这里；
- 激活21英语尊享卡，请点这里。
