But he was very tentative, fastidiously so, letting Ruth set the pace of sprightliness and fancy, keeping up with her but never daring to go beyond her.
And that's the Ruth Mason Quarry where we've got a bone bed of several thousand individuals of Edmontosaurus, and every once in a while we'd find a bone or two of Dromaeosaurus in there.
To catch up with University of Maine paleoclimatologist Karl Kreutz and his team, we hopped on a plane rigged with skis that landed right on the Ruth Glacier in the heart of the Denali National Park.
为了赶上缅因大学古气候学家 Karl Kreutz 和他的团队,我们跳上了一架装有滑雪板的飞机,飞机正好降落在 Denali 国家公园中心的露丝冰川上。