when did humans and animals first appear on earth
This is when ancient animals would gradually change forms over a long period of time.the first land animals appear on earth? About 417 million years age during the Devonian era. As for creationism there are skeletons of humans who are much older than 6000 years.ence it is the first plant as well as first animal. Some millions of year back. The first known fossils of what is possibly animal life appear in the Ediacara biota just prior to the Cambrian era.
According to human evolution, humans as they are now first appeared on the earth around 250,000 years ago.n the bible, in the book of genesis you will find that the first person on earth is Adam   Another answer: All of the evidence that has been accumulated suggests that th â¦ ere was no first human. Humans gradually became differentiated from their ancestors.