EarthLittle bugs on the prairie: the key to happy grassland Farming has stripped the US prairies of their essential microbes. Identifying the lost bugs and putting them back could help restore the degraded land ¿ìè¶ÌÊÓÆµ
HealthMedieval bones yield 1000-year-old leprosy genome Ancient DNA sequences are being probed to reveal origins of devastating human plagues ¿ìè¶ÌÊÓÆµ