playing any new technology is not the characteristic of the animals and having a shopping
Most mammals have nipples, but there is at least one (a rodent whose particular species escapes me) who feeds its young with milk that drips from slits in it's body, not from nipples.
Mammary glands are found only on mammals
feathered
It is rephrased as mammals are homeothermic animals .
Having hair is a characteristic of all "mammals."
Breastfeeding is a defining characteristic of mammals -- so yes, all mammals breastfeed.
As with all mammals, the echidna feeds its young on mothers' milk.
Yes, that is one characteristic.
The mammary glands, a defining characteristic of mammals.
The main characteristic shared by mammals, and which makes them distinct from other vertebrate groups, is that they suckle their young on mothers' milk. This is the main characteristic mammals share.Also unique to mammals is the fact that they have fur or hair.
Your question seems to suggest that mammals that feed milk to their young are a subset of mammals. But all mammals feed milk to their young. That, along with the presence of hair, is the defining characteristic of all mammals, without exceptions.
Quite simply, there are three species of mammals which lay eggs rather than giving birth to live young. These are the platypus, the short-beaked achidna and the long-beaked echidna. These mammals are still classified as mammals because they have fur, breathe using lungs and feed their young on mothers' milk. The last characteristic is the defining characteristic of all mammals, regardless of whether they are placental mammals, marsupials or monotremes (egg-laying mammals).
Mammals have a body covering of hair or fur.
The main characteristic of the flying mammals is that they are all species of bats. Bats are the only flying mammal. Some of the characteristics of bats are that they fly almost exclusively at night, they can't walk very well, and they have excellent hearing.
Birds and mammals are air breathers. Lampreys are not.