'It's easy to mess up their development': Monarch butterflies raised in captivity may not migrate to Mexico

'It's easy to mess up their development': Monarch butterflies raised in captivity may not migrate to Mexico

If you’re raising monarch caterpillars in the hope that when they become butterflies, they’ll fly to Mexico and help replenish endangered populations, a new study offers some warnings and some advice. Monarch butterflies raised indoors as caterpillars don’t head south towards Mexico when they emerge from their chrysalises, researchers at the University of Chicago have found. “It’s easy […]