Monarch Butterflies: Up, Up, and Away

Monarch butterflies are the celebrities of the insect world. You probably know about their famous transformation from caterpillar to butterfly. But what else do you know about them? Are monarchs endangered? Why are there imposters out there imitating them? How do they manage their incredible two-way flights? And what’s up with those Florida monarchs?Why don’t they behave like the others? The answers may surprise you.