For a female mammal, therefore, reproduction is not something to be undertaken lightly.
From the independent.co.uk
Every female mammal can do it, over and over again.
From the guardian.co.uk
A female mammal allows each embryo to burrow deep into the wall of her womb, where it takes nutrients straight from her blood.
From the newscientist.com
Injuries to the 6-foot-long, female mammal were so severe she had to be euthanized several hours after the attack, the Los Angeles Times said Saturday.
From the upi.com
Such risky female behaviour is puzzling in the mammal world.
From the sciencedaily.com
Female platypuses produce milk for their young like a mammal, but also lay eggs like a bird.
From the stltoday.com
It is true that you generally need a male and female pairing to procreate if you are a mammal or bird, but what does that have to do with marriage?
From the economist.com
The extinction of the Judaean desert leopard, Israel's largest native mammal, has been inevitable ever since the last young female was killed accidentally two years ago.