An illustration of Late Devonian animals swimming in the water. About 350 million years ago, long before the dinosaurs stalked the planet, a gigantic fish with deadly fangs hunted river waters on the ...
The first African fossils of Devonian tetrapods (four-legged vertebrates) show these pioneers of land living within the Antarctic circle, 360 million years ago. The first African fossils of Devonian ...
Human beings have existed for 300,000 years and have managed to live in many unstable environments. We've survived ice ages, devastating pandemics and world wars. But how would we fare even further ...
A 10-foot-long, torpedo-shaped fish lurks through murky freshwater, its body casting a shadow on the creatures below. The opened mouth reveals dagger-like fangs, some two inches long, perfect for ...
One of the best-documented evolutionary transitions is the appearance of tetrapods, the four-limbed vertebrates that now dominate the land. A large series of “fishapod” fossils have been discovered ...
Newly-discovered fossils reveal that some of the first animals to walk on land lived in Antarctica, according to scientists. The four-legged creatures, described as a cross between a crocodile and a ...
About 380 million years ago, late in the Devonian Period, the ocean waters that covered what is now Ohio were home to a fish that scientists named Dunkleosteus. The predator was named for David Dunkle ...
Q: What do we know about the environment in which the transition to land occurred? NS: Back in the Devonian, north central Pennsylvania was very different from today, where you now find a river valley ...
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