Silphium was a highly prized herb in ancient times. Used in the kitchen and the bedroom, this mysterious plant was a must have for Mediterranean cultures. Then one day it disappeared without a trace.

Visit speakpipe.com/extinctionevent to leave us a message about this weeks topic or anything on your mind. This weeks question: Should the pigeon replace the bald eagle as the national bird? Or tell us your weird pigeon story. 

Send us Fan Mail