In 20 14, scientists from the University of Umeo in Sweden discovered the oldest tree in the world on a mountain range in central Sweden. Its root system has a history of 9500 years and continues to grow.

This kind of spruce, called Old Chico, was discovered by scientists in 2004 when they conducted a tree survey in Fluffyalet National Park, Sweden. According to the carbon 14 dating, it is found that its root system is at least 9500 years old, but its trunk is relatively young.

Scientists say that this tree can survive for so long because of its asexual reproduction characteristics, which means that it can effectively clone itself. Other big trees can't live this long. The trunk of this 4-meter-high tree looks quite young, but its root system has been growing for nearly ten thousand years. The researchers said: "During the ice age, the sea level was lower than it is now 120 meters. At that time, many waters between Britain and Norway were forests. This may be the place, the fir tree of that era. "