Ceratosaurus
The horned hunter of the Morrison
Pair Bond Durations
Seasonal
Pairs form for a single breeding season and may find new partners next year
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Animals
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Seasonal Animals
Tarbosaurus
Nemegt's tyrant king
Leedsichthys
Jurassic seas' gentle giant filter-feeder
Cave Bear
The Pleistocene cave hibernator
Patagotitan
Patagonia's colossal long-neck
Psittacosaurus
Small beak, big Cretaceous success
Blue-Gray Gnatcatcher
Tail-flicking, gnat-grabbing dynamo
Whimbrel
Curved bill, epic journeys
Canada Warbler
The necklace warbler of the boreal
Daeodon
Not a pig-just terrifying teeth.
Troodon
Famous, brainy, and taxonomically tricky
Amargasaurus
Two spines, one Patagonian icon
Microraptor
Four wings, one big flight story
Pelagornis
Giants of the wind-swept seas
Hyaenodon
Hyena-toothed hunters of deep time
Brontosaurus
Thunder lizard, science icon
Tyrannosaurus Rex
Late Cretaceous king of crushing bites
Brachiosaurus
The high-shouldered sky-browsing sauropod
Pteranodon
Crested ruler of the Cretaceous skies
Short-Faced Bear
Big legs. Short face. Ice Age titan.
Megalania
Pleistocene Australia's giant goanna
Livyatan
Big-toothed terror of the Miocene seas
Python
Big squeeze, bigger diversity.
Velociraptor
Swift seizer of the Gobi