Cows can sleep standing up, but they can only dream lying down.
745
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
Rattlesnake mating sessions have been known to last more than 22 hours.
232
A giraffe's kick is so powerful that it can decapitate a lion.
216
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1