20esiècle 20thcentury anecdotes authors biographies biography biologists biology canada canadian(english) chercheuses familyrelationships femmesbotanistes femmesscientifiques geobiology manic-depressivepersons mariagesheikh marriagesheikh nazneen newyorktimesbestseller newyorktimesreviewed nyt:combined-print-and-e-book-nonfiction=2016-04-24 paleobotanists relationsfamiliales research sheikh womenbotanists écrivainscanadiens-anglais