Sir David Attenborough explores fossils from a North Dakota site that could reveal what happened to the animals here the day an asteroid struck Earth and wiped out the dinosaurs.
Broadcast In: English Duration: 0:56:46Sir David Attenborough explores fossils from a North Dakota site that could reveal what happened to the animals here the day an asteroid struck Earth and wiped out the dinosaurs.
Broadcast In: English Duration: 0:56:46