SCIENCE
Kenney, Karen Latchana

Extreme Longevity: Discovering Earth's Oldest Organisms

(3) YA Sharks that live to be over four hundred years old? Ten-thousand-year-old plants? Jellyfish that may be immortal? As scientists study these long-living organisms, particularly their DNA, they can learn more about human aging. Plenty of sidebars and photos, as well as the engagingly written text on an interesting topic, make this a good nonfiction choice for reluctant readers. Reading list, timeline, websites. Bib., glos., ind.

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