Physical prowess and the intelligence required to use it to one’s advantage for better adaptation practices are what an organism needs for dominance in nature. Mammals were able to become lords of the earth primarily because of the high level of development of their brains. This gave them the capacity to absorb information, to learn and to remember, making them superior to all other animals.
Mammals also became dominant because of the way their body evolved and adapted. Some developed hooves and became grazers on the grasslands of the world. Others developed hunting skills and became meat eaters. Some mammals developed wings and took to the air while others adapted to life at sea. Land dwellers developed four limbs, which they used for moving about most efficiently. Many mammals developed sharp curved claws and tails that were adapted for living in trees. Others developed thin membranes of fur-covered skin that stretched between their legs, which allowed them to glide.
Do you know the only mammals that can fly? They are bats. Most mammals can swim while some have special adaptations that make them expert swimmers. Seals, sea lions and walruses spend most of their time in water, while sea cows and whales live in the water from birth to death.
The hair and teeth of mammals are adapted to suit a wide variety of habitats and different types of food. Mammals have also learnt to protect themselves and many have deadly weapons to attack their enemies.
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