Scientists discover how ancient animals first moved to land

Imagine the Devonian period, about 390 million years ago—a world of shallow, oxygen-poor swamps.

Primitive lungs evolved, and fins slowly transformed into robust limbs.

Fossils like the famous Tiktaalik reveal a unique "fishapod," a hybrid creature with both gills and a load-bearing pelvis.

Recent studies show that this evolution was surprisingly fast, with lineages experiencing rapid physical changes over 30 million years.

Furthermore, genetic research highlights "convergent evolution," proving that nature often hits upon the same solutions for terrestrial challenges like dehydration.