| 1 | Age contorts the trunks of a group of whitebark pine trees in Yellowstone National Park. | |
| 2 | Given all this, the federal government is considering putting whitebark on the endangered species list. | |
| 3 | At this period, Mr. Song's representative work of oil painting, White pine was collected by National College Art. | |
| 4 | Now I wonder if my grandchild will ever have the experience of being in white bark. | |
| 5 | Given all this, the federal government is considering putting whitebark on the endangered species list. Logan predicted the danger to whitebark pine trees 10 years ago. |
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