There is only one known species of primate that still has a functioning third eyelid, and that is the Calabar angwantibo (closely related to lorises) which lives in West Africa.
半月皱襞是长在耳朵上部和中部连接处的一个很小的细长瘤。
Third eyelid
英语例句库
原声例句
PBS趣味科普
A leftover of a third eyelid we can still find in lizards, birds, fish, and others.
那是第三眼睑的残余，我们还能在蜥蜴、 鸟类、 鱼类等其他动物身上发现这种特征。
TED-Ed（视频版）
It’s actually the remnant of a third eyelid.
它实际上是第三眼皮的残余。
动画英语
Hiccup noted, with great relief, that the third eyelid was still down.
卡嗝如释重负地注意到，第三只眼皮还在下垂。
动画英语
Hiccup realized, in an agony of suspense, that the gossamer-thin third eyelid was still down.
卡嗝在一种悬念的痛苦中意识到，薄薄的第三只眼皮还在下垂。
动物逻辑学
And since their eyes are crucial to their survival, they protect them while diving with a semi-translucent third eyelid.
由于他们的眼睛对他们的生存至关重要，因此他们在潜水时用半透明的第三眼睑保护眼睛。
英语百科
Nictitating membrane
（重定向自Third eyelid）
The nictitating membrane (from Latin nictare, to blink) is a transparent or translucent third eyelid present in some animals that can be drawn across the eye for protection and to moisten it while maintaining visibility. Some reptiles, birds, and sharks have full nictitating membranes; in many mammals, a small, vestigial portion of the membrane remains in the corner of the eye. Some mammals, such as camels, polar bears, seals and aardvarks, have full nictitating membranes. Often called a third eyelid or haw, it may be referred to in scientific terminology as the plica semilunaris, membrana nictitans or palpebra tertia.
- Xanlar的意思
- Xannies的意思
- xanol的意思
- Xanomeline的意思
- xanomeline trartrate的意思
- Xanor的意思
- xanorphica的意思
- xanoxate sodium的意思
- xanoxic acid的意思
- Xan的意思
- Xantal的意思
- xantal alloys的意思
- xantana的意思
- Xanteline的意思
- Xanten的意思
- Xanterra的意思
- Xanth的意思
- xantha的意思
- xanthacin的意思
- Xanthacridinum的意思
- xanthaematin的意思
- xanthaemia的意思
- xanthagenate的意思
- xanthaline的意思
- xanthalysin的意思