Why do some animals have 4 legs

Answers:

Most mammals, reptiles and amphibians have four legs to be able to move faster. Our ancestors had four legs to be able to move faster, early rats and mice; they sacrificed this advantage to be able to climb with ease. They evolved into primates. Eventually our strand of apes hit the floor of the African plains, walked upright to see among the grass, and grew taller to expose this advantage and their front legs became arms, as it would be more useful than legs.
ad
Relevant answers:
  • Why do some animals have 4 legs while others have 2?
    Some animals have for legs and some have 4 because of evolution and also some need more speed and balance than others.
  • Indian animals on 4 legs?
    Those animals are Tiger and elephant
  • What are some animals that have three legs?
    just about any animal that was in an accident
  • What animal has 4 legs and no horns?
    dog,cat,mouse
  • Why do some animals have four legs?
    Well over time mutation has taken place it's simple really 1000 years ago China had invented a time machine this has helped them for many decades they saw the future and what would happen so they...

    • Can you answer these questions?