h*h
5 楼
风吹草动,被惊醒了?
y*u
6 楼
我觉得是醒着的
Birds don't have the eight hour, dead-to-the-world snore fest like we do.
Birds are totally light sleepers, they rarely fall into any kind of deep
sleep at all. Most of us are able to sleep soundly without much fear of
being eaten. But birds must be constantly aware of their surroundings,
keeping an ear alert for danger, ready to hop out of bed and move on at a
moment's notice. Short little bursts of sleep are the best that many of them
can hope for.
Most birds use the old "wing tuck" method. Actually, birds don't tuck their
heads under their wing. Instead they rest their heads on their backs while
they nuzzle their beaks into their back feathers. Sleeping with their head
tucked on their back allows birds to rest their neck muscles and also makes
for better heat conservation.
做梦其实是深层睡眠了
【在 h*h 的大作中提到】
: 风吹草动,被惊醒了?
Birds don't have the eight hour, dead-to-the-world snore fest like we do.
Birds are totally light sleepers, they rarely fall into any kind of deep
sleep at all. Most of us are able to sleep soundly without much fear of
being eaten. But birds must be constantly aware of their surroundings,
keeping an ear alert for danger, ready to hop out of bed and move on at a
moment's notice. Short little bursts of sleep are the best that many of them
can hope for.
Most birds use the old "wing tuck" method. Actually, birds don't tuck their
heads under their wing. Instead they rest their heads on their backs while
they nuzzle their beaks into their back feathers. Sleeping with their head
tucked on their back allows birds to rest their neck muscles and also makes
for better heat conservation.
做梦其实是深层睡眠了
【在 h*h 的大作中提到】
: 风吹草动,被惊醒了?
g*e
7 楼
多谢科普,那么说就是一边放哨一边聊天了,挺好玩的。
them
their
【在 y**u 的大作中提到】
: 我觉得是醒着的
: Birds don't have the eight hour, dead-to-the-world snore fest like we do.
: Birds are totally light sleepers, they rarely fall into any kind of deep
: sleep at all. Most of us are able to sleep soundly without much fear of
: being eaten. But birds must be constantly aware of their surroundings,
: keeping an ear alert for danger, ready to hop out of bed and move on at a
: moment's notice. Short little bursts of sleep are the best that many of them
: can hope for.
: Most birds use the old "wing tuck" method. Actually, birds don't tuck their
: heads under their wing. Instead they rest their heads on their backs while
them
their
【在 y**u 的大作中提到】
: 我觉得是醒着的
: Birds don't have the eight hour, dead-to-the-world snore fest like we do.
: Birds are totally light sleepers, they rarely fall into any kind of deep
: sleep at all. Most of us are able to sleep soundly without much fear of
: being eaten. But birds must be constantly aware of their surroundings,
: keeping an ear alert for danger, ready to hop out of bed and move on at a
: moment's notice. Short little bursts of sleep are the best that many of them
: can hope for.
: Most birds use the old "wing tuck" method. Actually, birds don't tuck their
: heads under their wing. Instead they rest their heads on their backs while
i*s
13 楼
我觉得这个是笼统的说法,那些住洞里的鸟安全感应该比较强,大鹰一类也不担心安全
,晚上没必要半睡半醒的。
them
their
【在 y**u 的大作中提到】
: 我觉得是醒着的
: Birds don't have the eight hour, dead-to-the-world snore fest like we do.
: Birds are totally light sleepers, they rarely fall into any kind of deep
: sleep at all. Most of us are able to sleep soundly without much fear of
: being eaten. But birds must be constantly aware of their surroundings,
: keeping an ear alert for danger, ready to hop out of bed and move on at a
: moment's notice. Short little bursts of sleep are the best that many of them
: can hope for.
: Most birds use the old "wing tuck" method. Actually, birds don't tuck their
: heads under their wing. Instead they rest their heads on their backs while
,晚上没必要半睡半醒的。
them
their
【在 y**u 的大作中提到】
: 我觉得是醒着的
: Birds don't have the eight hour, dead-to-the-world snore fest like we do.
: Birds are totally light sleepers, they rarely fall into any kind of deep
: sleep at all. Most of us are able to sleep soundly without much fear of
: being eaten. But birds must be constantly aware of their surroundings,
: keeping an ear alert for danger, ready to hop out of bed and move on at a
: moment's notice. Short little bursts of sleep are the best that many of them
: can hope for.
: Most birds use the old "wing tuck" method. Actually, birds don't tuck their
: heads under their wing. Instead they rest their heads on their backs while
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