Material Detail

Longevity and animal scale

Longevity and animal scale

Larger scale in animals of the same shape would reguire greater blood pressure.  This might negatively affect longevity.  However, a larger heart requires a slower heart rate.  The empirical evidence indicates that the mammalarian heart is good for about a billion beats regardless of animal scale.  The slower heart rates of larger scale animals  more than compensates for any negative influences of scale on...

Show More

Quality

  • Editor Reviews
  • User Rating
  • Comments
  • Learning Exercises
  • Bookmark Collections
  • Course ePortfolios
  • Accessibility Info

More about this material

Comments

Log in to participate in the discussions or sign up if you are not already a MERLOT member.