If there are two things we at Speaking of Science love, it's bad puns and our readers.
Last week, we sent some science valentines in our newsletter (*ahem* which you can sign up for here!) and asked readers to contribute their own.
Now here they are, in all their nerdy glory. Download them, print them out, send them to the person in your life who will build you a nice bower out of sticks, decorate it exclusively with blue objects, and perform a special dance inside.