For decades, the coelacanthexisted only in fossil records—until one turned up in a South African fishing net. It was 1938 ...

4 min read When the Devonian period dawned about 416 million years ... as it spawned a remarkable variety of fish. The most formidable of them were the armored placoderms, a group that first ...

At that time, known as the Devonian period, the world was changing dramatically: complex plant ecosystems formed on land, the first woody plants appeared, and the water's edge was becoming a new ...

While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...