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. Mammals are a class in the chordate phylum. Mammals are like other chordates in that they have backbones. Mammals have several distinct characteristics. 1  They have hair on their bodies.2  They nurse their young.ammals. Mammals are a class in the chordate phylum. Mammals are like other chordates in that they have backbones. Mammals have several distinct characteristics. 1  They have hair on their bodies.