they are smaller and they beat faster
animals have shorter lives because there heart is smaller and there body parts are different then ours.
his heart beats different than most of ours his beats faster which gives him more stamina to pedal
Earthworms don't have spines, so their nerves don't travel through there.
yes it is smaller! you should know this if your in collage
There are a couple animals with more than one heart. A squid or an octopus both have three hearts. Although not technically a 'heart' in the sense that humans have hearts, earthworms have five hearts. A Hagfish actually has four hearts.
The numbers are different and so is the writing from ours.
There are approximately 2,700 different kinds of earthworms in the world. Worms live in freshwater, saltwater, and on the shore.
The possession of four pulmonary veins, along with the fact that a bird's heart is generally larger and more muscular per pound (or kilogram) or body weight than ours, explains why a bird's circulatory system is more efficient than ours. The left ventricle in a bird's heart is by far the largest chamber and has to work exceptionally hard in small birds which have hovering flight such as humming birds.
A frog does not have a nose. They breathe through their pores, or holes in their skin.
Other Worlds Than Ours was created in 2005.
Animal vocal cords are about the same as ours, but it is the shape of their tongue and mouths which make the different sounds come out. Some animals, such as the cat, has a second vocal cord used for purring.
no