You all remember, dolly, it came from a single mammary cell.

So if males do have nipples and mammary glands, couldn't they produce milk?

Now if you take the mammary gland and spread it and take the fat away, on a dish it looks like that.

If the cloned cells are placed in the uterus of a female mammal, a cloned organism develops to term in rare instances.

And so therefore, if you look at the same region of a genome in many mammals that have been evolutionarily distant from each other and are also ecologically divergent, you will get a better understanding of what the evolutionary prior of that site is, i.e., if it is important for the mammal to function, for its survival, it will be the same in all of those different lineages, species, taxa.

Instead, I argued that whales are social mammals with big brains, capable of enjoying life and of feeling pain and not only physical pain, but very likely also distress at the loss of one of their group.