5. Ant
Despite their size, ants are masters of cooperation and adaptability. Some ant species form supercolonies that stretch across entire continents, demonstrating their impressive organizational abilities.
Ants communicate through chemical signals and work together seamlessly, allowing them to thrive in almost any environment. Their societies are so advanced that certain species practice agriculture—growing fungus as food—and even tend to other insects like livestock.
With sheer numbers and strategic coordination, ants could easily assert dominance over vast territories if they set their collective will to it.
Source: Scientific American