In the 1950s, Swiss farmers intensified and mechanized their fields; nine decades of records now reveal an unexpected divide: butterflies are still struggling, while forest beetles have fully bounced back

Butterflies and beetles are disappearing at an alarming rate. A Swiss study reveals significant butterfly losses since 1930, linked to farming changes. While beetles have recovered somewhat, butterflies continue to decline. This insect crisis is a global issue, impacting nature reserves and butterfly populations across continents. Conservation efforts are underway but require greater scale and urgency.