Fundulus

Fundulus is a genus of small freshwater and coastal fish commonly known as killifish. They are characterized by their robust bodies, bright colors, and diverse patterns. Found mainly in North America, particularly in streams, ponds, and marshes, they are adaptable and often used in scientific research due to their unique reproductive and developmental traits. Killifish are important indicators of environmental health and are valued by hobbyists for their vibrant appearance. Their ability to survive in varied and sometimes harsh conditions makes them fascinating subjects in studies of evolution and ecology.