Trees are also a kind of strong living creature in this world, some of which have outlived thousands of generations of human ancestors. Click through to find out the top 10 unbelievable oldest trees in the world.

1. Pando in Utah
Pando, also called the Trembling Giant, is a clonal male quaking aspen that is believed to have one massive underground root system. It is estimated that Pando is 6 million kg in weight and 80,000 years old in age, but now may be suffering from death for reasons unknown.

2. Jurupa Oak in California
Found in Riverside County, southern California, the Jurupa Oak, a clonal colony of Palmer’s oak tree, is estimated to be 13,000 years old.
