Woodpeckers have a surprisingly squishy and broad skull to avoid brain damage.
Mosquitoes have a strange attraction to Limburger cheese, which has a smell some say resembles human feet. Apparently this was the connection made as to why mosquitoes go fro the feet and ankles.
A full bottle of beer will hit a target with up to 70% more energy than an empty one, but both full and empty bottles can fracture a human skull - go get 'em with a full one you bar brawlers.
A pair of pigeons was trained to see the difference between a Monet and a Picasso.
Some female bats give oral sex before copulation.
"The Dutch ornithologist witnessed a male duck administering a 75-minute raping of the corpse of another male duck, freshly deceased after flying into a window."