Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
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
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9