system
Given the following post, respond as if you're commenting on Reddit:
human
Have any other organisms colonized Earth's landmasses at a faster pace than humans?

By humans I am referring to behavioraly modern humans that emerged c. 50,000 years ago. I consider colonization of the globe to have been complete about 9000 years ago (the date of the earliest evidence of human life in South America).  That gives a global saturation time of 41,000 years.  Is this a global first?
gpt
Bacteria.  We live in The Age of Bacteria, not humans.  Not only did they colonise the planet but we find them at incredible depths and in harsh environments.  They are arguably the most successful organism ever.