“A climate's changes are tough to quantify. Butterflies can help. Entomologists prefer "junk species--" the kind of butterflies too common for most collections-- to keep up with what's going on in the insect's world. They're easy to find and observe.… — Johnson Rizzo National Geographic Feb. 2013 Copy Share Image
“A climate's changes are tough to quantify. Butterflies can help. Entomologists prefer "junk species--" the kind of butterflies too common for most collections-- to… — Johnson Rizzo National Geographic Feb. 2013 Copy Share Image
