The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Squirrels forget where they hide about half of their nuts.
698
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Tigers can see 6 times better at night than humans.
305
Nicole Kidman is scared of butterflies.
65