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Geek of the Week: Timshel Purdum

Cephalopod enthusiast talks being a “geek.”

Girls enjoy indoor family fun at a dinosaur museum overnight

Dinosaurs After Dark

One-of-a-kind dinosaur museum overnight for the whole family

Unique Bones Help Place Catfish

Resolution after centuries of confusion

Rocks versus minerals

Common Mineral Questions

What’s the difference between a rock and a mineral?

Diatoms as Indicators

New data produces interesting findings.

Detail from Jason Poole's Suuwassea painting

The World of Suuwassea

What was it like to live among the dinosaurs?

Two Centuries of Shells

Philadelphia Shell Show is Oct. 22-23.

Mike Servedio at Beartooth Pass Overlook

Insects and Windshield Impact

Splats influenced by vehicle speed, season.

A New ‘King’

Gigantic, Ancient Armored Fish Discovered