User Tag List

Results 1 to 5 of 5

  1. #1
    Permabanned
    Join Date
    Apr 2007
    MBTI
    ExTJ
    Posts
    1,377

    Default Cold weather creature question

    How do cold weather creatures (Arctic fish, tundra insects, etc.), keep their metabolism going at the low temperatures they will likely have?

    This just occurred to me recently. I have heard about how hypothermia in humans will really slow most body processes down (possibly because of hormones or nerve signals, but still slower.), how chemical reactions, diffusion, etc. sometimes change speeds quite a lot with temperature, and it also seems that smaller creatures in cold water or cold air with no fur and such will pretty easily get cold enough to cause things to slow down.

  2. #2
    On a mission Usehername's Avatar
    Join Date
    May 2007
    MBTI
    INTJ
    Enneagram
    1
    Posts
    3,823

    Default

    Quote Originally Posted by Zergling View Post
    How do cold weather creatures (Arctic fish, tundra insects, etc.), keep their metabolism going at the low temperatures they will likely have?

    This just occurred to me recently. I have heard about how hypothermia in humans will really slow most body processes down (possibly because of hormones or nerve signals, but still slower.), how chemical reactions, diffusion, etc. sometimes change speeds quite a lot with temperature, and it also seems that smaller creatures in cold water or cold air with no fur and such will pretty easily get cold enough to cause things to slow down.
    they slow down the heart rate a ton, that's really all that I know.
    *You don't have a soul. You are a Soul. You have a body.
    *Faith is the art of holding on to things your reason once accepted, despite your changing moods.
    C.S. Lewis

  3. #3
    insert random title here Randomnity's Avatar
    Join Date
    May 2007
    MBTI
    ISTP
    Enneagram
    6w5 sp/sx
    Posts
    9,489

    Default

    -because fish are cold-blooded, their body temperature in cold water is very low, so their metabolism is slowed
    -most of them have molecular specializations on the cellular level that allow them to survive without molecular damage from the cold
    -all the chemical reactions that occur are much, much slower, although a lot of species have evolved specialized enzymes which help compensate for the effect of the cold
    -a lot of arctic fish barely eat anything, and have to wait a long time for it to digest, but they have low energy needs so it balances out.
    -they also move more slowly, but since predator/prey fish would also be moving slowly, it wouldn't be that huge of a disadvantage
    -basically everything in their body happens in slow motion, maybe with some exceptions I'm unaware of

    It's much harder for warm blooded creatures, who have to maintain a constant body temperature that's far higher than the environment in order to survive. Especially on land, which is far colder than the water.

  4. #4

    Default

    This reminds me of a type of worm they found living in glaciers that - as the story goes - actually 'melts' if removed to a warmer environment.

    It's interesting because one of the things scientists are look at when talking about the earliest occurence of life (or extraterrestrial life) are these extreme environments where life amazingly exists.

    (...that doesn't have much to do with complex organisms or the OP for that matter, but I thought I'd just throw it out there anyway.)

  5. #5
    Strongly Ambivalent Ivy's Avatar
    Join Date
    Apr 2007
    MBTI
    INFP
    Enneagram
    6
    Posts
    24,060

    Default

    I was thinking of the creatures that live near the undersea vents, where the temperature and pressure is so high. I think I remember reading that they have always died when brought to areas of "normal" temp/pressure.
    The one who buggers a fire burns his penis
    -anonymous graffiti in the basilica at Pompeii

Similar Threads

  1. Cold Weather and Joints
    By Thursday in forum Health and Fitness
    Replies: 3
    Last Post: 11-17-2013, 01:41 PM
  2. Weather & personality type: do I´s go to cold places while E´s favour beach resorts?
    By curiousel in forum Myers-Briggs and Jungian Cognitive Functions
    Replies: 21
    Last Post: 12-08-2011, 02:39 PM
  3. Question to my fellow INTP emmigres
    By SolitaryWalker in forum The Bonfire
    Replies: 44
    Last Post: 04-25-2007, 02:52 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Single Sign On provided by vBSSO