A single celled organism.
unicellular animal.
Dinosaurs was the first animals living on earth,but died years ago.
The first organisms are believed to have been simple archaebacterias. It is believed that, due to it's ability to live in harsh conditions and the design that is much simpler than that of a eukaryotic cell, they were the first to inhabit the Earth.
a gorilla
Germs
1in the world slugs 2 in the world giant tortouis
Dragons don't live on Earth, that's for sure, unless they live in the center of the planet.... or something
The first animal to live on land was probably an amphibian.
We do not really know what the first animal (or consumer) was but we think it was a single celled creature.
the first person to live on earth was adem and eve
Adam and Eve were the first people put on Earth, by God.