Most mammals produce a 50:50 ratio of males to females.

The only pigments that mammals produce are melanins.

The process takes place only in mammals, as only mammals produce milk.

Many mammals and other larger animals produce very few young but give them a lot of care, so a larger percentage survive.

All mammals produce sebum to lubricate and protect the skin.

As such, it plays a major role in micro-organisms thriving on plant sources (mammals, conversely, do not produce xylanase).

Mamma is Latin for 'breast' and mammals produce milk.

Though humans possess a repertoire of iconic calls and gestures, mammals produce very few signals that are iconic in any way.

A general rule of thumb is that a mammal will produce half as many offspring as the number of teats on the mother.

Some mammals even produce poison to deter predators looking for a meal.