
The Earth is full of marvelous giants that trot the globe, and it is truly interesting to know how nature has engineered these creatures to manage their biggest heads, and how they have been adapted for feeding, movement, or survival in the most extreme environments. These massive giants are found in the deep ocean, arctic ice, and these colossal craniums are powerful tools, allowing their owners to survive despite their incredible size.Some animals have evolved huge skulls to support massive mouths, especially filter feeders like whale sharks and basking sharks, whose heads help them consume vast quantities of tiny prey. While other creatures with large heads have specially built bodies, helping them to dive deep, break through ice, or emit powerful sounds. Here are 5 creatures in the animal kingdom with the largest heads.