The average hen lives 5-7 years but there are records of them living up to 20 years.
Chickens will lay between 600-800 eggs in their lifetime.
Hens will lay eggs their entire life, but production decreases each year.
Chicken's body temperature normally runs at 102-103 degrees F and can be elevated by feeding them certain foods such as cracked corn.
The record for most number of eggs laid in one day is 7.
The record for the most number of yokes in a single egg is 9.
Chickens can run up to 9 miles an hour.
The chicken is the closest living relative to the T-Rex. And if you've ever seen one run, you'll see the connection.
There are more than 200 varieties of chickens today.
There are more chickens on earth than there are people, with over 3 billion chickens in China alone.
Americans consume 8 billion eggs a year.
If you have a fear of chickens, you are an Alektorophobic.
Chickens can make over 200 distinct sounds to communicate with each other.
One chicken can create enough waste in its lifetime to power a 100-watt light bulb for five hours.
The size egg a chicken lays is determined by the age of the bird, not the size. Hens start out laying small eggs and the size will get larger and larger over time.
Chickens will also lay bigger and stronger eggs if you give them more light, making them think the days are much longer than in reality.
If you have a group of hens and no rooster, one hen will often take up the role of the rooster, stop laying and begin to crow.