Poll: Here are 5 unusual animal facts. Can you add more of your own?

The placement of a donkey's eyes in its' head enables it to see all four feet at all times. Brown eggs come from hens with red feathers and red ear lobes; white eggs come from hens with white feathers and white ear lobes. Shell color is determined by the breed of hen and has no effect on its quality, nutrients... show more The placement of a donkey's eyes in its' head enables it to see all four feet at all times.

Brown eggs come from hens with red feathers and red ear lobes; white eggs come from hens with white feathers and white ear lobes. Shell color is determined by the breed of hen and has no effect on its quality, nutrients or flavor.

A duck's quack doesn't echo, and no one knows why.

Goat's eyes have rectangular pupils.

During breeding, a pig's "orgasm" lasts for more than 30 minutes.
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