purplecthulhu (![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
purplecthulhu) wrote2003-09-07 03:59 pm
purplecthulhu) wrote2003-09-07 03:59 pm
Calling all biologist
I've been discussing body clocks with ![[livejournal.com profile]](https://www.dreamwidth.org/img/external/lj-userinfo.gif)
purpletigron. Its well established that humans have an average natural day length of about 25 hours, which is odd since days around here are 24 hours long. This can be used to argue that we're all Martians, since Mars' day is about 25 hours, but there must be some other explaination. I was speculating that this might be due to the evolutionary effect of access to fire and other forms of artificial light for the last 50000 years or so. A prediciton of this would be that birds and animals without 'benefit' of artificial light would have a natural body clock with a day length closer to 24 hours.
So the challenge for you biologists out there... Is there any information about the body clocks of species other than homo sapiens? Cangreenjavatroll or her purple colleague help? Anyone else?
purpletigron. Its well established that humans have an average natural day length of about 25 hours, which is odd since days around here are 24 hours long. This can be used to argue that we're all Martians, since Mars' day is about 25 hours, but there must be some other explaination. I was speculating that this might be due to the evolutionary effect of access to fire and other forms of artificial light for the last 50000 years or so. A prediciton of this would be that birds and animals without 'benefit' of artificial light would have a natural body clock with a day length closer to 24 hours.So the challenge for you biologists out there... Is there any information about the body clocks of species other than homo sapiens? Can
greenjavatroll or her purple colleague help? Anyone else?