It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Female kangaroos have three vaginas.
2
The largest breed of rabbit is the Flemish Giant.
65
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Rattlesnake mating sessions have been known to last more than 22 hours.
232