Tom Metcalfe

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All Stories by Tom Metcalfe
- Animals
Genetics might save the rare, elusive saola — if it’s not already extinct
A new genetic study could help saolas survive by enabling better searches through environmental DNA. But some experts fear they may be extinct already.
- Archaeology
These ancient Maya-era puppets may have been used in rituals
The puppets, unearthed in El Salvador, have movable heads, strange facial expressions and may have been dressed for ritual roles.