WASHINGTON (AP) — When archaeologists first discovered the 5,000-year-old ornate tomb in Spain, they assumed it was for a man. It held a rock crystal dagger, ivory tusks and other lavish items. But now they’ve determined the remains are those of a woman, and all it took was two teeth.

The researchers used a new method of determining sex that analyzes tooth enamel. , developed about five years ago, is more reliable than analyzing skeletal remains in poor condition, according to their study published Thursday in the journal .

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