This week in the journal Nature, a team of researchers from Uppsala University in Sweden, the European Synchrotron Radiation Facility (ESRF) in France and the University of Cambridge in the United ...

The aerial scene depicts two Late Devonian early tetrapods - Ichthyostega and Acanthostega - coming out of the water to move on land. Footprints trail behind the animals to show a sense of movement.

An obscure creature called Acanthostega was responsible for a momentous step in the evolution of life on Earth. Essentially a fish, it was nonetheless the first animal to emerge from the water and ...

Researchers have shown that fossils of the 360 million-year-old tetrapod Acanthostega, one of the iconic transitional forms between fishes and land animals, are not adults but all juveniles. This ...