According to The Bible, animals that lived in the water were the first creatures created although it does not specify which specific animal was the very first one. You can find this answer in the book of Genesis, chapter 1 verse 20-21:
(20) And God said, "Let the water teem with living creatures, and let birds fly above the earth across the expanse of the sky." (21)So God created the great creatures of the sea and every living and moving thing with which the water teems, according to their kinds, and every winged bird according to its kind. And God saw that it was good.
the first animal on the earth is a Dinosaur's
unicellular animal.
bacteria
in 1957 laika was the first animal to orbit the earth
First animal on the Earth was a jellyfish. See below-
It is impossible to know which was the first.
Forest Root Domain
Lizards(dinosaurs)
a dinosaur was the first animal on earth
Lizards(dinosaurs)
the first type of cells on the early earth were prokaryote cells.
Dinosaurs was the first animals living on earth,but died years ago.