It doesn't have a heart?
its a worm
Its heart is a tube running the length of its body.
Maybe that its heart can slow down from beating to really slow beats or it can like stop beating and still be living.
Process of Science
The Happy ScientistPromote Your Page Too
Contact The Happy Scientist
Copyright © 2006 - 2014. Robert Krampf All Rights Reserved. http://thehappyscientist.com