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Aerial giant with a wing span of over 30 feet
Related to the pigeon, flightless bird with portly frame and stubby wings.
Snake-like sea serpent measuring nearly 65 feet long.
Twenty-foot-long giant centipede with lethal venom.
From the Carboniferous Period, a primitive relative of the modern spider.
Saber-toothed predator from the Permian period.
Large passive herbivore weighing about 5.5 tons.
Herd herbivore that dominated the open grasslands between the recent Ice Ages.
Desert predator that detects prey via vibrations in the sand.
Future creature, part seal or walrus and part mandrill or baboon.
Saber-toothed cat from the late Pleistocene Epoch.
Engulfed in stinking fog, large enough to consume a human.
Dinosaur with lightweight skeleton, long arms and sickle-shaped claw on its second toe.
Evolved from carnivorous beetles, uses large compound eyes to detect prey.
Thick-skulled dinosaur from the Late Cretaceous.
Burrowing herbivore from the late Permian Period.
Fast terrestrial predators with meat hook-like wings.
Parasitic organism that brings dead hosts back to life.
Dinosaur from mid-Cretaceous, larger than T. Rex.
Color-changing mammal with sharp teeth and yellow eyes.
Ancient crocodile with long legs, hooves and the ability to run.
Rhino-sized running predator with powerful jaws.
Short-legged and large-headed aquatic carnivore.
Mammal-like creature—the earliest known venomous vertebrates.
Arboreal dinosaur with ability to climb tall structures.
Wingless bat with lightning-fast reflexes from the future, uses high-frequency sonar to track prey.
Largest of all carnivorous dinosaurs, with 6-foot-long spines.
‘Boar crocodile’ with three sets of tusk-like teeth.
Flying reptile from the Permian period, about 250 million years ago.
A dinosaur found in southern England during the Middle Jurassic period.
Marine reptile from the Middle Jurassic Period.
Carnivorous, 10-foot-long insect from the future.
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