Erratic southern invaders repel rivals with acid.
Fragile bones make pterosaur reconstruction difficult.
Neither birds nor dinosaurs, pterosaurs were reptiles.
Neanderthal traces appear in genes for hair and skin.
A new exhibition brings ancient animals to life.
Ben Oppenheimer discusses exoplanet imaging.
On display at the Museum from Feb. 27 - Mar. 5, 2014.
See live butterflies at the Museum through June 22, 2014.
Curator Mark Norell leads a tour of the Paleo Prep Lab.
Learn how paleontologists find fossils.