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 top 10 unbelievable oldest trees in the world.
Pando, also called the Trembling Giant, is a clonal male quaking aspen which 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.
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.
Located on Fulufjället Mountain in Sweden, Old Tjikko is a clonal Norway Spruce, which is estimated to be at least 9,558 years old.
Jomon Sugi, which got its name from Jomon period of Japanese pre-history, is located on Yakushima in Japan. It is a large Cryptomeria tree with 25.3 m in height and 16.4 m in trunk circumference. The age of the tree is estimated to range between 2,170 and 7,200 years old.
Methuselah is a Great Basin bristlecone pine which is believed to be 4.847 years old. The tree is found in the White Mountains of eastern California though its exact location has been kept secret from the pubic.
Located in St Dygain's Church in Llangernyw, this yew is about 4,000 years old. In 2002, the tree was honored as one of 50 Great British Trees by the UK Tree Council.
Also called the "Zoroastrian Sarv", Cypress of Abarkuh is 25 m in height and 18 m in circumference, and is located at Abarkuh of Iran. More than 4,000 years old and regarded as a national natural monument, Cypress of Abarkuh is protected by the Cultural Heritage Organization of Iran.
Alerce Milenario, also called "Gran Abuelo", is a monotypic genus in the cypress family native to the Andes Mountains. The tree, with 60 m in height and 4.26 m in trunk diameter, is estimated to be 3622 years old.