Homo is the genus that comprises the species Homo sapiens, which includes modern humans, as well as several extinct species classified as ancestral to or closely related to modern humans—as for examples Homo habilis and Homo neanderthalensis. The genus is about 2.8 million years old; it first appeared as its earliest species Homo habilis, which emerged from the genus Australopithecus, which itself had previously split from the lineage of Pan, the chimpanzees.

Taxonomically, Homo is the only genus assigned to the subtribe Hominina which, with the subtribes Australopithecina and Panina, comprise the tribe Hominini (see evolutionary tree below). All species of the genus Homo plus those species of the australopithecines that arose after the split from Pan are called hominins.

Homo erectus appeared about two million years ago in East Africa (where it is dubbed Homo ergaster) and, in several early migrations, it spread throughout Africa and Eurasia. It was likely the first hominin to live in a hunter-gatherer society and to control fire. An adaptive and successful species, Homo erectus persisted for almost 2 million years before suddenly becoming extinct about 70,000 years ago (0.07 Ma)—perhaps a casualty of the Toba supereruption catastrophe.

Homo is the taxonomical genus that includes modern humans (Homo sapiens sapiens).

Homo may also refer to:

See also

The following is a list of LGBT slang terms. Some of the terms may be considered acceptable to LGBT peoples in a casual register when used among members within LGBT communities. Many imply masculinity in women (e.g., "bull dyke") or effeminacy in men (e.g., "fairy").

Female

Male

An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. Supersonic explosions created by high explosives are known as detonations and travel via supersonic shock waves. Subsonic explosions are created by low explosives through a slower burning process known as deflagration. When caused by a man-made device such as an exploding rocket or firework, the audible component of an explosion is referred to as its "report" (which can also be used as a verb, e.g., "the rocket reported loudly upon impact".)

Causes

Natural

Explosions can occur in nature. Most natural explosions arise from volcanic processes of various sorts. Explosive volcanic eruptions occur when magma rising from below has much dissolved gas in it; the reduction of pressure as the magma rises causes the gas to bubble out of solution, resulting in a rapid increase in volume. Explosions also occur as a result of impact events and in phenomena such as hydrothermal explosions (also due to volcanic processes). Explosions can also occur outside of Earth in the universe in events such as supernova. Explosions frequently occur during bushfires in eucalyptus forests where the volatile oils in the tree tops suddenly combust.

Explosions in the Sky is an American post-rock band from Texas. The quartet originally played under the name Breaker Morant, then changed to the current name in 1999. The band has garnered popularity beyond the post-rock scene for their elaborately developed guitar work, narratively styled instrumentals, what they refer to as "cathartic mini-symphonies," and their enthusiastic and emotional live shows. They primarily play with three electric guitars and a drum kit, although band member Michael James will at times exchange his electric guitar for a bass guitar. Recently the band has added a fifth member to their live performances. The band's music is almost purely instrumental.

History

Originally called Breaker Morant, Explosions in the Sky was formed in Austin, Texas in 1999. Drummer Chris Hrasky is from Rockford, Illinois, and the rest of the band hails from Midland, Texas. The new name of "Explosions in the Sky" came from a comment Hrasky made in reference to the noise or sight of fireworks when they left KVRX on the night they played their first set and recorded their first track, "Remember Me as a Time of Day", that would be released on a compilation. Their 2000 debut album, How Strange, Innocence, was locally distributed in the form of CD-Rs. Rehearsal footage is featured on the feature film Cicadas, which won an Austin Film Festival award.

"Explosions" is a song by English recording artist Ellie Goulding from her second studio album, Halcyon (2012). Written by Goulding and John Fortis, it was released as a promotional single on iTunes Ireland on 3 August 2012 and on iTunes UK on 1 October 2012, but was removed shortly thereafter on both occasions. In late January 2013, it was announced that the track would be released as the official third single from the album. The official music video premiered on 30 January 2013 and consists of exclusive live footage of Goulding from The Halcyon Days Tour.

Commercial performance

Following its use on ITV's "Where Drama Lives" advertisement, "Explosions" debuted at number 122 on the UK Singles Chart for the week ending 26 January 2013, jumping to number thirty-three the following week on sales of 9,851 copies. In its sixth week, the song rose to its peak position of number thirteen, selling 24,269 copies. The single had sold over 200,000 copies in the UK as of August 2013, and was certified silver by the British Phonographic Industry (BPI) on 20 September 2013.