The first fossil of Tiktaalik roseae was uncovered in the Canadian Arctic in 2004. Tiktaalik likely lived in shallow water close to the shore. It is a remarkable creature that owes its nickname “fishapod” to the anatomical features it shares with fish and four-legged animals, or tetrapods. Like a fish, it has scales, fins, and gills. But it also has tetrapod features like a neck, a flat head with eyes on top, strong ribs to support its body weight, and limb-like bones with a wrist, that clearly distinguish Tiktaalik from early fish. Its fossilized body tells us that many tetrapod features first arose in animals still living in water.