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The Sacramento Mountains checkerspot butterfly is critically endangered, with the last known larva living in a lab in New Mexico. By Catrin Einhorn and Diana Cervantes

An environmental journalist and child of Caroline Kennedy, she recently wrote of her battle with leukemia in The New Yorker, drawing worldwide sympathy.

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3 days ago · Play the Daily New York Times Crossword puzzle edited by Will Shortz online. Try free NYT games like the Mini Crossword, Ken Ken, Sudoku & SET plus our new subscriber-only puzzle …

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An environmental journalist and child of Caroline Kennedy, she recently wrote of her battle with leukemia in The New Yorker, drawing worldwide sympathy. By Penelope Green

9 New Movies Our Critics Are Talking About This Week Whether you’re a casual moviegoer or an avid buff, our reviewers think these films are worth knowing about.