On a warm summer morning in Ypres, Belgium, 66-year-old Sylvain Cuvelier steps into his blooming garden with his 14-year-old granddaughter, hoping to identify and count all the fluttering butterflies.
A painted lady perches on a flower. Ennio Borgato / iNaturalist CC By-SA 4.0 On a warm summer morning in Ypres, Belgium, 66-year-old Sylvain Cuvelier steps into his blooming garden with his ...