Yes, that is one characteristic.
Yes - all mammals nurse their young and therefore need to have mammary glands.
Mammary glands are the source of milk production in female (and some male) mammals
Mammals have mammary glands like whales
"Mammal" comes from mammary gland. All animals that produce milk are mammals.
No they do not. Turtles are not mammals.
Mammary gland consist of glandular tissue and fatty tissue in them. Mammary glands are characteristic of mammals.
Mammary Glands
Mammals are a group of animals characterized by (in females) the presence of mammary glands. Mammals are a group of animals; mammary glands are a body part.
Mammary gland consist of glandular tissue and fatty tissue in them. Mammary glands are characteristic of mammals.
mammary gland
Well they're mammals so yeah, all mammals have mammary glands
Mammals, hence the name mammary gland for breast.
Those are the mammary glands in all mammals