As a second line of defence, butterflies will flash their showy upper side patterns, which buys them the few vital seconds they need to escape. For example, the owl butterfly has contrasting blue and ...

The causes involve more than just habitat loss, but there are steps you can take to help save these delicate creatures ...

Through careful planning and collaboration with the Presidio Trust and the Xerces Society, scientists restored lost habitat and reintroduced blue butterflies to the area.

They tend to evade their predators by scaring them with that bright blue flash of the wings.” Both butterflies come from tropical areas in Costa Rica and only live for about two weeks as adults.