Scientists have long puzzled over the gap in the fossil record that would explain the evolution of invertebrates to vertebrates. Vertebrates, including fishes, amphibians, reptiles, birds, mammals, ...

Introduction. What is a vertebrate fossil? ; What are morphology, pathology, natural alterations, and cultural modifications? ; Why study morphology, pathology, natural alterations and cultural ...

The Philippines, long recognized as one of the world’s most important biodiversity hotspots, could lose nearly a quarter of ...

Four-limbed vertebrates, known as tetrapods, have two enlarged areas in their spinal cords. The two enlargements have a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The sensitive ...

For centuries, writers have mused on the heart as the core of humanity’s passion, its morals, its valour. The head, by contrast, was the seat of cold, hard rationality. In 1898, US poet John Godfrey ...