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Passenger Pigeons

Can you imagine what a flock of more than a billion birds looks like?

Corresponding With Darwin

Read an excerpt from Charles Darwin’s letter to Joseph Leidy.

Discovering the Jocotoco

It sounds like an owl, but this creature won’t be showing up in your backyard! In fact, the jocotoco antpitta (Grallaria ridgelyi) is so hard to find that ornithologists didn’t know…

Tiktaalik on Camera

In July 2013, a crew of four filmmakers joined Ted Daeschler and his colleagues for their trip to the southern Ellesmere Island site where they discovered Tiktaalik roseae.

Hedgehog Tales

Hedgehogs join the Academy!

Unnatural History: The Odd and Remarkable Dioramas of Lori Nix Opens in the Art of Science Gallery

Lori Nix’s photographs imagine what goes on in dioramas.

Orchids of Pennsylvania

When you think of an orchid, you probably imagine the Cattleya orchid that is given as a corsage on special occasions and grows in a thick, lush tropical rainforest. Or maybe you think of…

two pieces of a turtle bone

Two-Part Turtle

Two states. Two centuries. Two parts of the same turtle.

New Live Animals

We’re super excited about some new live animals that have come to the Academy recently! Soon you will be able to see them in Outside In, during Naturalist Presentations, Outreaches, and…

Autism Initiative

Academy provides helpful tools for visitors on the autism spectrum.