I was saving this for April Fool's Day but every time I see it, I just start smiling, so why not spread the fun around?
I hope you can see this image clearly. You may need to double-click on it.
Now you know what's really inside those big guys.
If your monitor isn't high resolution or you are reading the blog on your cell phone, watch this YouTube video, it might help explain the heavy horse anatomy. It's a take-off on Wheatabix cereal commercials (I guess).