Tanis: Fossil found of dinosaur killed in asteroid strike, scientists claim

Tanis: Fossil found of dinosaur killed in asteroid strike, scientists claimTanis: Fossil found of dinosaur killed in asteroid strike, scientists claim External link

To play this video you need to enable JavaScript in your browser.By Jonathan AmosBBC Science Correspondent@BBCAmosScientists have presented a stunningly preserved leg of a dinosaur.

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