Spinosaurus
Sail-backed hunter of ancient rivers
Mating Social Behaviors
Solitary
Individuals live alone except during mating encounters, with no lasting social bonds
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Animals
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Solitary Animals
Compsognathus
Small body, sharp bite, Jurassic sprint
Ceratosaurus
The horned hunter of the Morrison
Tarbosaurus
Nemegt's tyrant king
Tylosaurus
Ram-snouted ruler of Cretaceous seas
Dickinsonia
Quilted giant of Earth's deep past
Plesiosaur
Four flippers, many lifestyles
Megatherium
The Great Beast of the Ice Age
Suchomimus
Croc-snouted hunter of Cretaceous Niger
Cave Bear
The Pleistocene cave hibernator
Daeodon
Not a pig-just terrifying teeth.
Elasmotherium
The steppe rhino behind unicorn lore
Mosasaurus
Apex lizard of the Cretaceous seas
Hyaenodon
Hyena-toothed hunters of deep time
Tyrannosaurus Rex
Late Cretaceous king of crushing bites
Short-Faced Bear
Big legs. Short face. Ice Age titan.
Gargoyle Gecko
Horned head, forest-night hunter
Megalania
Pleistocene Australia's giant goanna
Python
Big squeeze, bigger diversity.
Red-Footed Tortoise
Red feet, rainforest traveler.
Achrioptera Manga
Madagascar's master of mimicry
Thanatosdrakon
Argentina's "death dragon" of the skies
Velociraptor
Swift seizer of the Gobi
Repenomamus
The mammal that could tackle dinosaurs