Behold the lined belly of a beast.
I was watching channel 4's 'Inside Nature's Giants' and just thought that the underside of this whale was beautiful.
It's almost like a giant finger print, or a landscape if you ignored the woman on the top. (For anyone out there who lacks the imagination, i did a mock up for you.)
It's amazing the way different bodies are built, i definitely recommend watching the 4 episode's. (Unfortunately not available on 4OD though you can find them on Youtube if you search for them.)