BBC5 年
Black squirrels the result of 'interbreeding' grey squirrels, study finds
Black squirrels are the result of "interbreeding" between their grey cousins and the North American fox squirrel, a study has concluded. Research published in BMC Evolutionary Biology found the ...
来自MSN7 个月
In medieval England, leprosy spread between red squirrels and people, genome evidence shows
In the new study, the researchers studied 25 human and 12 squirrel samples to look for M. leprae at two archaeological sites in Winchester. The city was well known for its leprosarium (a hospital ...