Article Most Wanted: prehistoric

5 Top Facts Prehistoric Weirdos

These are five prehistoric creatures that I do believe less people knew about this. Without waiting further, here is the list.<br />
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<h2>
Therizinosaurus</h2>
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Although it is thought to have been herbivorous, this five-ton dinosaur had the largest claws ever - three on each hand, each reaching up to a meter (3.2 feet) in length!<br />
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<h2>
Shavipteryx</h2>
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Unlike pterodactyls, this gliding reptile had its main wing membranes stretched between its hind legs, with a second, smaller pair on the front - possibly for steering.<br />
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<h2>
Opabinia</h2>
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Five eyes and a backwards-pointing mouth that was fed from a single clawed tentacle are the features that qualify the opabinia for a place in this roundup. Was it a crustacean? A sort of worm? No one really sure.<br />
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<h2>
Argentavis</h2>
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A feathered bird, from around 6 million years ago. It was as tall as a man and had a seven-meter (23-foot) wing span. It's believed to have grabbed prey without landing and swallowed it whole. Scary!<br />
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<h2>
Hallucigenia</h2>
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This strange worm from 500 million years ago had spines and tentacles that ended in pincers. Scientists still aren't sure how it fed even which way up it went!