User blog comment:The Milkman/No Love For Leviathan?/@comment-4947725-20120918053701/@comment-2228120-20120918154317

"The Leviathans aren't the typical galactic species with "expected" lifestyle. They are billions of years old "firstborn" "apex predators"

Hang on a sec, was there age actually mentioned? I was under the impression that the Leviathan talking to Shepard actually said that he/she/it was the descendant of the few survivors, which IMHO doesn't imply that it has been around all the time.