
No one can know for certain what colour dinosaurs were, because no skin has survived. But it is a reasonable guess, for instance, that dinosaurs that lived by hunting would have had comouflage to conceal them from their prey. Like leopards and tigers today, they may have had stripes or spots to make them harder to see in the shadows under trees.
Some dinosaurs may have made use of bright colours in their sexual behaviour. Hadrosaurs, for example, were a group of dinosaurs with strange protruberances - crests, lumps and bumps - on their heads. If these protruberances were used for sexual display, they may have shone in splendid shades of red, blue, orange or green, especially in the mating season.
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