Sex is probably the most popular pastime in the history of life on Earth — which makes it all the more ridiculous that so many of us have such a mealy-mouthed way of talking about it. Take the expression "the birds and the bees," which we use to avoid speaking more explicitly about courtship and sex to our kids.
Male Adelie penguins are some of the most conniving little creatures on the planet. And we let them get away with it. Why? Because they're freaking adorable, that's why.