The largest breed of rabbit is the Flemish Giant.
65
Cats and dogs can hear ultrasound.
350
The most expensive cow in the world was sold in 2009 for $1.2 million.
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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
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6