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Stories by Kristin Leutwyler

Ecstasy's Legacy

Several studies have now shown that the popular drug causes permanent brain damage

July 24, 2000 — Kristin Leutwyler

Mapping Chromosome 21

The smallest human chromosome has so few genes, scientists are rethinking estimates for the entire genome

May 15, 2000 — Kristin Leutwyler

Snake Hunting

A new fossil is helping scientists clarify the slippery origins of modern serpents

March 20, 2000 — Kristin Leutwyler

Parsing Genes

Non-Hodgkin's lymphoma is two diseases in one, say researchers who identify the genes that cells express.

February 14, 2000 — Kristin Leutwyler

The Jigsaw Fossil

Part dinosaur, part bird? All wishful thinking. Remains dubbed Archaeoraptor liaoningensis are a hoax

January 31, 2000 — Kristin Leutwyler
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