Yes they do. They are located in the groin of the whale.
If you take a look at the photo in the following link who will see a beached whale with two small humps above its tail. They are the mammery glands.
http://farm1.static.Flickr.com/54/184021880_afd63742b0.jpg?v=0
Koalas are marsupials, which are pouched mammals. They breed from September to February. Females breed from 2 years of age, and males from 3-4 years after they have established their own territory. Males are extremely aggressive during mating periods. Thirty-five days after mating, the female produces one joey weighing about 0.5 grams and about 2 cm long. Koalas have a woolly light to dark grey fur with brown and white patches and a cream belly. They have a broad head with small eyes, large furry ears and a distinctive large black nose. Females has two teats and a rear opening pouch.
Yes. Any animal that can breastfeed has that.
Rudimentry - human males have nipples, for instance.
yes they have mammary glands to produce milk to nourish their young ones.
Yes. As mammals, female squirrels have mammary glands.
Yes, that is one characteristic.
yes
Yes
Mammals (both male and female) have hair and mammary glands.
Mammary glands are the source of milk production in female (and some male) mammals
All mammals (both male and female) are characterised by having mammary glands.
No. Only mammals have mammary glands. Bullfrogs are amphibians, not mammals.
No. Only mammals have mammary glands. Anchovies are fish, not mammals.
No kingdom consists of mammary glands. However, I believe mammals is the answer you are looking for. Mammals are all animals that have mammary glands.
Well they're mammals so yeah, all mammals have mammary glands
Stingrays don't have mammary glands. Mammary glands are only found on mammals. Stingrays are fish.
No. Snakes are reptiles. Only mammals have mammary glands.
Yes. Like all mammals, the platypus has mammary glands.
Those are the mammary glands in all mammals
Mammals have mammary glands like whales