00:05when earth's giants fell how prehistoric beasts lost their world tyrannosaurus rex once stalked
00:11north american floodplains with bone-crushing jaws across ancient oceans forests swamps and
00:17grasslands prehistoric beasts hunted grazed charged and vanished as earth changed around
00:22them tyrannosaurus rex walked through late cretaceous north america using massive teeth
00:27and powerful legs before the asteroid impact ended its world megalodon hunted ancient seas with huge
00:33jaws but cooling oceans and shrinking prey helped push the giant shark into extinction the woolly
00:39mammoth crossed ice age tundra with curved tusks and thick hair before warming climates and human
00:44hunting pressure reduced herds the saber-toothed cat ambushed large prey in ancient grasslands
00:49then disappeared as ice age animals declined and habitats changed the giant ground sloth moved
00:56through forests and open land browsing plants with huge claws before humans and climate shifts
01:01closed in the dire wolf hunted in packs across north america but vanished when large prey animals
01:06disappeared after the ice age the dota walked on mauritius without fear of humans then disappeared
01:11after sailors hunting and introduced animals reach the island the giant short-faced bear roamed ice age
01:17north america standing taller than modern bears before changing prey and climate pressures reshaped the
01:22land these vanished animals share one pattern even powerful bodies can fail when food climate habitat
01:29and competition change too fast a fossil tooth tusk or claw can still show the moment earth's giants lost
01:35their world
01:36you
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