We're live with Museum tour guide Pat in the Hall of African Mammals! Post your questions in the comments below.

We’re LIVE in the Discovery Room, learning more about the new salt water tank. Tell us where you’re watching from—and ask us questio…

We're LIVE in the revitalized Hall of Meteorites with Museum guide Tom. Post your questions in the comments!

We're LIVE in the Hall of North American Forests with Andrew Epstein. Ask your questions in the comments section below!