Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The cat brain weighs about 30g.
167
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Condoms were originally made of animal intestines or linen.
347
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
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