Scientists long debated whether Nanotyrannus was from a separate group of Tyrannosaur species, or if they were teen specimens of T. rex. The separate group hypothesis has recently prevailed.
Where did it start? How did it grow complex? Why did it get big? Three moments in Earth’s early history when evolution suddenly, inexplicably turned up the dial.
Where did it start? How did it grow complex? Why did it get big? Three moments in Earth’s early history when evolution suddenly, inexplicably turned up the dial.
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