Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
When cats are happy, they may squeeze their eyes shut.
10
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
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
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
The reindeer is the only mammal that can see UV light.
17
Dogs have been man's pet for over 14,000 years.
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