With legs, probably soft bodied worms .
it was the fishapods or.....athropods
The earliest organism in Earth's fossil record that qualifies as an "animal" is likely a 760 million year old microscopic sponge Otavia antiqua discovered in African rock.
a russian dog and the first animal to orbit the earth ( first animal to go on the moon ) * * * * * Laika (Lyka?) did not go to the moon.
If you mean by hundreds or thousands then yes they did but millions of millions years ago bacteria's were the first to colonized the earth.
No. The smallest animal (mammal) on earth alive today is The Shrew.
you.
Neil Armstrong was the first animal to walk on the moon.
the first animal on the earth is a Dinosaur's
The first animal to walk on the Moon was a human, Neil Armstrong.
land mammal
An elephant is the largest mammal on land.
According to the bible, the first person to walk on earth was Adam, followed by Eve.
the blue whale (answer by karl )
The only animal has been man.
Dinosaurs
unicellular animal.
The largest animal ever is the blue whale ...although it didn't quite walk on earth. http://en.wikipedia.org/wiki/Largest_organisms
bacteria