The female pigeon cannot lay eggs if she is alone. In order for her ovaries to function, she must be able to see another pigeon.
65
The fingerprints of koala bears are virtually indistinguishable from those of humans, so much so that they could be confused at a crime scene.
73
Frogs cannot swallow without blinking.
41
The 'vintage date' on a bottle of wine indicates the year the grapes were picked, not the year of bottling!
38
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
On average, there's 300 billion neurons in the octopus brain.
129
There are more chickens than people in the world.
325