The stickleback is a small fish characterized by its conspicuous spines and unique reproductive behavior. Despite its small size, it is a fierce swimmer that scares off predators with its movable ...

Mar. 10, 2025 — It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing ...

Mar. 12, 2025 — The discovery of a human facial fragment aged over one million years represents the oldest known face in western Europe and confirms the region was inhabited by two species of ...