This Florida river may look ordinary, but it was once part of an ancient sea. As we explored the riverbed, fossils appeared everywhere, revealing marine life from millions of years ago. This video ...

Scientists at MIT have found compelling chemical evidence that Earth’s earliest animals were likely ancient sea sponges. Hidden inside rocks over 541 million years old are rare molecular “fingerprints ...

Rising mountain peaks and sharp rock formations cover the ocean floor, with corals, sponges, fish, and tons of sea creatures clinging to their sides. Unlike mountains on land that dare climbers and ...