One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A cow produces around 200,000 glasses of milk in her lifetime.
373
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492