Unexpected Location: Fossil Jaw Bone Suggests the Origins of the Largest Whales 19 Million Years Ago
Baleen whales, known as the largest animals to have ever lived, have a new record holder. The blue whale, which can reach lengths of up to 30 meters, holds the title. However, recent fossil discoveries from the Southern Hemisphere are challenging the belief that most baleen whales were relatively small. A fossil found on the…