system
Given the following post, respond as if you're commenting on Reddit:
human
What would have been on the land when “life” first crawled out of the water?
gpt
If you mean 'animals', the first animals to colonize the land were arthropods during the Silurian. 

Near lakes, rivers, and the coast, there would have been very primitive plants (think moss and bryophytes) and early land fungi. The rest of the land would have been largely barren.