The "wise elder" archetype is prevalent throughout mythology, literature, and film — think Splinter, Yoda, Merlin, Olenna Tyrell, and Rupert Giles. Oh, and dinosaurs, naturally. The eldest and most experienced of all sages, dinosaurs ruled the Earth for 135 million years and went out in a blaze of cosmic glory. We can learn a lot about our own tenuous position in the universe from their example. Ready for some tips from the Mesozoic? Jump in!