Before the evolution of legs from fins, the axial skeleton - including the bones of the head, neck, back and ribs - was already going through changes that would eventually help our ancestors support ...

Roger Smith, left, and Neil Shubin examine a fossil. Photo courtesy PBS We all know the Darwin fish, the car-bumper send-up of the Christian ichthys symbol, or Jesus fish. Unlike the Christian symbol, ...

It had some features of its lobe-finned ancestors, such as scales, webbed fins and primitive jaws. But it also bore similarities to later, four-legged, land-dwelling animals called tetrapods. It had ...

You’ve met the front of Tiktaalik roseae, the fish-like creature that fills an important gap between fish and four-legged, land-based animals. Now, the hindquarters of the 375-million-year-old fossil ...

Researchers in Philadelphia are picking through the fossil bones of an aquatic animal named tiktaalik to see how our evolutionary ancestors emerged onto land from the water. Researchers in ...

The closest known relative of the ancestors of limbed animals such as humans likely evolved the foundation for rear legs even before the move to land, researchers say. This ancestor may have even been ...

Reconstruction of Tiktaalik roseae. Credit: Thomas A. Stewart et al. / Penn State Even before fins evolved into legs, our ancient ancestors’ skeletons were changing in ways that would help them ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. We all know the Darwin fish, the car-bumper send-up of the Christian “ichthys” symbol ...

You may have come across a meme showing an ancient fish known as Tiktaalik. It shows the green, eel-like creature crawling out of the sea about 375 million years ago — about the time that scientists ...

The discovery of new fossil materials from the ancient fish species Tiktaalik roseae has revealed a key link in the evolution of hind limbs. The newly described, well-preserved pelves and partial ...

Cartoonists love to chuckle over Charles Darwin's theory of evolution, with drawings of fish creeping timorously up from sea to land and quickly turning themselves into timid four-legged creatures ...

It may not be the worst of times, but it is certainly not the best of times. The pandemic has no end in sight. The world is warming, the seas are rising and polar bears are barreling toward extinction ...