A Brief Over-view of the Etymology of Modern Goju-ryu Karate-do Kata. By Joe Swift and Mario McKenna. It is now well documented that Okinawa karate is indebted to the Southern schools of Chinese boxing for much of its technical knowledge and expertise.
Best Answer: They are all warm-blooded, and they all have hair even if you can't see it (including dolphins and whales). Mammals all share mammary glands (milk producing glands). This is the biggest feature, also mammals use 3 bones for hearing and they have hair. Should be noted that endothermy (warm-blooded) is not unique to mammals, birds also share this characteristic.
Mammals give birth to live young apart from all species in the class monotremes who lay eggs. They are able to move around using their limbs. Mammals have a larger and more well developed brain than other animals. Some mammals such as humans, chimpanzees and dolphins are very intelligent.ammals give birth to live young apart from all species in the class monotremes who lay eggs. They are able to move around using their limbs. Mammals have a larger and more well developed brain than other animals. Some mammals such as humans, chimpanzees and dolphins are very intelligent.