Cats and dogs can hear ultrasound.
350
Dogs sometimes fake being sick to get attention.
26
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Nicole Kidman is scared of butterflies.
65