History's Mysteries
Asteroids: K-T Boundary Crater (3:18)
Scientists believe an asteroid crater in the Yucatan Peninsula may explain the dinosaur extinction.
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Asteroids: K-T Boundary Crater
Asteroids: K-T Boundary CraterVideo Clip (3:18)
Video Clip (3:18)
Scientists believe an asteroid crater in the Yucatan Peninsula may explain the dinosaur extinction.






