Sonic The Hedgehog, the world's fastest (and only) red-sneaker-wearing, golden ring-stealing, electric-blue placental mammal turned 20 last month - Happy Birthday!
Here are 5 interesting facts about Hedgehogs:
1- The average lifespan of a hedgehog is 3.5 years. Some hedgehogs can live up to 9 years.
2- The normal heartbeat of a hedgehog is 190 per minute which comes down to 20 per minute during hibernation in winters.
3- Hedgehogs have a strong sense of smell and hearing but they have weak eyesight.
4- Hedgehogs swim, climb walls and can run with a speed of 4.5 mph.
5- Hedgehogs curl into a prickly ball when attacked. It is a very unappetizing sight for the predator, which compels it to leave the hedgehog alone. Hedgehogs normally, sleep by curling into a tight ball.