In January Olivia Judson, one of the few evolutionary biologists I can bear to read, started writing again for the New York Times blog The Wild Side.

Last June she spent an entire month blogging daily for them, but this time around she posts something once a week. There's no more entertaining way to keep up with the kooky goings ons of evolutionary researchers, and her Valentine's Day post was no exception. Here she dreams of having a time machine so she can go back 68 million years to watch a couple of T. Rex's getting busy:

What was it like? Did they trumpet and bellow and stamp their feet? Did they thrash their enormous tails? Did he bite her neck in rapture and exude a musky scent? Somehow, I imagine that when two T. rex got it on, the earth shook for miles around.

And if I could only take this journey, I could answer a question that sometimes bothers me. Did T. rex have a penis? Did he even, as lizards do, have two?

She goes on to explain why there are so few penis fossils, and to take us on a quick tour of other great penises. But the piece really left me wondering; if I had a time machine, who would I want to watch having sex?

Read more - The Wild Side: A Tyrannical Romance