Wisdom Builder
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Abstract
excerpts.
Trading Cards
Lived 152 to 145 million years ago.
Stegosaurus
Dinosaur Evolution
Stegosaurus is the classic plated dinosaur most people picture: large back plates, a small head, and a spiked tail used for defense. It lived late in the Jurassic.
Animals
Story
Are dogs and wolves the same species?
Evolution
Yes. Dogs and wolves are the same species biologically, with dogs classified as a domesticated subspecies of the gray wolf.
Animals
FAQ
Was T. Rex feathered?
Dinosaur Evolution
Empirical evidence shows some T. rex skin was scaly. Rational comparison with feathered relatives suggests possible feathers. The full picture remains speculative.
Animals
FAQ