Sign up for email newsletters
Sign up for email newsletters
A monarch butterfly caterpillar munches on milkweed in a Santa Cruz yard. The transformation from caterpillar to butterfly is complete in just 9 to 14 days. Through the chrysalis, the day before the adult emerges, you can see the orange and black wings of the Monarch butterfly inside. (Shmuel Thaler/Santa Cruz Sentinel)
Sign up for email newsletters