Porcupines float.
The smallest mammal on earth is the bumblebee bat from Thailand.
Males bumblebees do not have stingers and unless you're digging around in the hive, you most likely will not get stung by any females. Males are mostly the ones out pollinating.
Dolphins are one of the only other mammals to have sex for pleasure besides humans.
Elephants really aren't afraid of mice. They have the same type of body chemicals. Since mice always want to get it on, elephants can sense this and go crazy bc now they want to mate.
Male iguanas are sensitive to human female menstrual cycles. If a female human owns a male iguana and is going through her period, he win attack any male (human or not) that comes near her.
If you were to eat a polar bear liver, you would die from vitamin A poisoning. Since they have a fishy diet, all of their vitamin A is stored in their liver.
Want to know why sloths are so damn slow?
Their diet is composed of mostly leaves and branches and such. These things do not provide the nutrients necessary to move any faster. They have to preserve their energy for instances when they really have to get out of dodge.
I could keep going about animal crap all day...
Oops... I forgot this was a 'sports' did you know.