What is the main reason for great difference between average life-span of differ

  1. pedagog profile image82
    pedagogposted 5 years ago

    What is the main reason for great difference between average life-span of different mammals?

        for common house mouse:4,
        for Norway rat :7,
        for dogs: 29,
        for cats:38,
        for polar bears:42,
        for horses:62,
        for Asian elephants:86,

  2. eternals3ptember profile image61
    eternals3ptemberposted 5 years ago

    Most lifespans are set by the amount of cell divisions that an organism will undergo in life, so mammals that live, or rather develop, faster, die quicker.

    Quicker gestation, quicker maturation, quicker death.

    Mice mature in a few weeks, elephants a few years, dogs a few months, etc.

    1. pedagog profile image82
      pedagogposted 5 years agoin reply to this

      so who manages the speed of cell division? is it genes or other metabolic processes. thanks for the response you are very sincere to all my questions.

 
working