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The Entwives moved away to what became the Brown Lands across the Great River Anduin, although the male Ents still visited them. The Entwives interacted with Men and taught them the art of agriculture. The gardens of the Entwives were destroyed by Sauron, and the Entwives disappeared. It was sung by the Elves that one day the Ents and Entwives ...
Ents were created in the Elder Days to be the "Shepherds of the Trees" and protect trees from the anticipated destruction that Dwarves would cause. In The Lord of the Rings, Treebeard recounts to the hobbits Merry and Pippin how the Ents were "awakened" and taught to speak by the Elves. He says that only three Ents remain from the Elder Days ...
In 2001, S. Labrosse and others, assuming that there were no radioactive elements in the core, gave an estimate of 1±0.5 billion years for the age of the inner core — considerably less than the estimated age of the Earth and of its liquid core (about 4.5 billion years) [58] In 2003, the same group concluded that, if the core contained a ...
The fictional races and peoples that appear in J. R. R. Tolkien's fantasy world of Middle-earth include the seven listed in Appendix F of The Lord of the Rings: Elves, Men, Dwarves, Hobbits, Ents, Orcs and Trolls, as well as spirits such as the Valar and Maiar. Other beings of Middle-earth are of unclear nature such as Tom Bombadil and his wife ...
“We had only planned to drill for 200 meters, because that was the deepest people had ever managed to drill in mantle rock,” Johan Lissenberg, a petrologist at Cardiff University and co-author ...
The history of paleontology traces the history of the effort to understand the history of life on Earth by studying the fossil record left behind by living organisms. Since it is concerned with understanding living organisms of the past, paleontology can be considered to be a field of biology, but its historical development has been closely tied to geology and the effort to understand the ...
The earliest Earth crust probably forms similarly out of similar material. On Earth the pluvial period starts, in which the Earth's crust cools enough to let oceans form. c. 4,404 Ma – First known mineral, found at Jack Hills in Western Australia. Detrital zircons show presence of a solid crust and liquid water.
A mineral grain from a meteorite preserved evidence that water was present on Mars 4.45 billion years ago, and it may have created hot springs habitable for life.