HumansEvolution of lactose tolerance probably driven by famine and disease Archaeological and genetic evidence casts doubt on the idea that the ability to digest lactose after infancy evolved gradually ¿ìè¶ÌÊÓÆµ
HealthCovid-19 news archive: March 2022 This is an archive of the ¿ìè¶ÌÊÓÆµÂ daily covid-19 news update, March 2022, Updates from: February 2022,  January 2022, November/December 2021, September/ October 2021, July to September 2021, June/ July 2021, May 2021, March 2021, February 2021, January 2021 ¿ìè¶ÌÊÓÆµ