The expanded 48-team format makes the 2026 World Cup one of the most open and exciting tournaments in recent history. There are many ways to engage with the tournament’s potential surprises beyond picking an outright winner. A dark horse’s potential is heavily influenced by the…

In the classical era, Aristotle divided animals,d based on his own observations, into those with blood (roughly, the vertebrates) and those without. The chordates are dominated by the vertebrates (animals with backbones), which consist of fishes, amphibians, reptiles, birds, and mammals. In deuterostomes, the mesoderm…