Search results
Results from the WOW.Com Content Network
A May 2016 study based on scaling laws estimated that 1 trillion species (overwhelmingly microbes) are on Earth currently with only one-thousandth of one percent described, [28] [29] though this has been controversial and a 2019 study of varied environmental samples of 16S ribosomal RNA estimated that there exist 0.8-1.6 million species of ...
The Ents appear in The Lord of the Rings as ancient shepherds of the forest and allies of the free peoples of Middle-earth during the War of the Ring. The Ent who figures most prominently in the book is Treebeard, who is called the oldest creature in Middle-earth. At that time, there are no young Ents (Entings) because the Entwives (female Ents ...
More than 99 percent of all species, amounting to over five billion species, [7] that ever lived on Earth are estimated to be extinct. [8] [9] Estimates on the number of Earth's current species range from 10 million to 14 million, [10] of which about 1.2 million have been documented and over 86 percent have not yet been described. [11]
The largest animal currently alive is the blue whale. The maximum recorded weight was 190 tonnes (209 US tons) for a specimen measuring 27.6 metres (91 ft), whereas longer ones, up to 33 metres (108 ft), have been recorded but not weighed. [11] [12] [13] It is estimated that this individual could have a mass of 250 tonnes or more.
Rising oxygen levels in the atmosphere due to the development of photosynthesis as well as possible Snowball Earth event. (see: Huronian glaciation .) Marine extinction intensity during Phanerozoic
HD 203030: HD 203030 B: 11 +4 −3: 487 128 2006 SDI [50] b Centauri: b Centauri b: 10.9 ± 1.6 556 330 2021 coronagraph+ classical angular differential imaging [51] HD 106906: HD 106906 b† 11±2 650 300: 2013 ADI USco CTIO 108: USco CTIO 108 b 14 +2 −8: 670 473 2008 Direct imaging 2MASS J23225240-6151114: 2MASS J23225299-6151275 12.6-13.3 ...
Ants (family Formicidae in the order Hymenoptera) are the most species-rich of all social insects, with more than 12,000 described species and many others awaiting description. [1] Formicidae is divided into 21 subfamilies , of which 17 are extant and four subfamilies are extinct , described from fossils .
As of 2006, NASA Earth Observatory has won the Webby People's Voice Award in Education three times. [2] There were a series of publicized images issued by the website in 2008, including imagery of clouds streaming over the Caspian Sea , dust storms curling off the coast of Morocco , the crumbling of the Wilkins Ice Shelf , Hurricane Bertha ...