BIRDS AND MAMMALS
DIFFERENCE
» Mammals have mammary glands, birds don't have any.
» Birds in general have feathers, that mammals lack.
» They are generally oviparous or that they lay eggs and mammals are viviparous, or they give birth to a live young.
» Birds in general have beaks, mammals don't usually have this feature.
» Birds have hollow and lightweight skeletons that eneble them to float.
SIMILARITIES
» Mammals and birds are both vertebrates, they have back bones.
» Mammals and birds are both biotic factors.
» They are both warm-blood
» Mammals and birds can adapt to harsh environment and migratory animals.
#Brainliestbunch
