Lobsters have blue blood.
476
Cows can sleep standing up, but they can only dream lying down.
745
Cats and dogs can hear ultrasound.
350
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Squirrels forget where they hide about half of their nuts.
698
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