A domestic cat can sprint at about 31 miles per hour.
274
The cat brain weighs about 30g.
167
Tigers can see 6 times better at night than humans.
305
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Nicole Kidman is scared of butterflies.
65
Female kangaroos have three vaginas.
2