A Western tiger swallowtail feasts on Red Valerian (aka Jupiter’s Beard) in our suburban yard in Centennial, CO. Photographer: Susan Jenkins
Honey bees like this one in a Denver backyard garden are not natives of North America. They were introduced in 1622 by colonists in Jamestown. Today they play a critical role in our food supply by pollinating plants — many of which were introduced as well. Recently they have been threatened by indiscriminate use of pesticides and diseases like colony collapse disorder. Photographer: Bob Stocker Stocker Photos
