Are we living in the biggest extinction event since the dinosaurs?

Pulitzer Prize-winning author Elizabeth Kolbert will be honored with a medal, and afterwards she'll discuss her book "The Sixth Extinction: An Unnatural History," which argues that we're currently experiencing the biggest extinction event since the asteroid that took out the dinosaurs.

Where: Academy of Natural Science at 1900 Ben Franklin Pkwy. 19103

When: September 21, 2016 at 6:20 p.m. to 8:20 p.m.

How much: Free with RSVP