Because fur is awesome. It protects your skin from damage (predators chewing on your legs and/or scrapes and bruises) keeps you from getting sunburn, keeps you from losing water, and is an extremely efficient way to thermoregulate. read more
The backbone initially gave early swimmers an agility advantage vs invertebrates. Millions of years later, we try to balance it on end, and the result is manifest in many back problems. Yet we can still successfully procreate, so it remains. read more
For the animals that live in the tropical region, their fur are not just design to keep them warm. For many animals, their fur serves as camouflage. They like to stay in the shade of the forest or cool themselves in the water. read more
Physical adaptations do not develop during an animal's life but over many generations. The shape of a bird's beak, the number of fingers, color of the fur, the thickness or thinness of the fur, the shape of the nose or ears are all examples of physical adaptations which help different animals to survive. read more