A butterfly disappeared from Ontario in 1988 and has not been recorded there since; nearly four decades later, scientists plan to bring eggs from New York and breed the species for release into restored Canadian habitat

• Image Credit: CanvaWhat if one day you discover the world has no butterflies?
• Their velvety wings, dashing through the garden, a moving pop of colour in a world of darkness.
• Butterflies are not just there for aesthetic purposes.