How many T. rexes were there? Billions: Analysis of what’s known about the dinosaur leads to conclusion there were 2.5 billion over time — ScienceDaily Source: How many T. rexes were there? Billions: Analysis of what’s known about the dinosaur leads to conclusion there were 2.5 billion over time — ScienceDailyShare this:TwitterFacebookLike this:Like Loading... Related
Darwiniana 