Talk:Lost River/@comment-24969486-20170322174310

The gargantuan skeleton's species must have gone extinct quite recently by comparison to many of Earth's ancient behemoths. Ten million years is a relatively small amount of time on the geological time scale. For reference, our earliest direct ancestors appeared roughly six million years ago. I'd like to see what kind of life 4546B was hosting just a few million years ago and what natural defenses potential prey animals had to develop when sharing the evironment with colossal predators like this guy.