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SMARTASAURUS
· Discoveries Archive

Ancient Earth

Dinosaurs, mass extinctions and the planet that came before this one.

Series
Showing 17 discoveries
Giants That Really Existed · 5 discoveriesOpen series
Big ancient creatures weren't always dinosaurs
Giants That Really Existed

Big ancient creatures weren't always dinosaurs

Turns out, some of the biggest things to ever walk the planet weren't dinosaurs at all

That gentle giant weighed a whole ton
Giants That Really Existed

That gentle giant weighed a whole ton

Who knew something so massive could be so chill? Let's meet this gentle powerhouse

Giant dragonflies dwarfed hawks in ancient skies
Giants That Really Existed

Giant dragonflies dwarfed hawks in ancient skies

Seriously, these ancient bugs were bigger than hawks. Wild!

How the giant megalodon starved itself
Giants That Really Existed

How the giant megalodon starved itself

that colossal ancient shark met its end not from space rocks, but from going hungry

T. rex had a secret fluffy side
Giants That Really Existed

T. rex had a secret fluffy side

That big ol' T. rex you pictured? Turns out, it might have been quite fuzzy