A lion in the wild usually makes no more than twenty kills a year.
186
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12