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Omo Kibish Formation
The Omo Kibish Formation or simply Kibish Formation is a geological formation in the Lower Omo Valley of southwestern Ethiopia. It is named after the nearby Omo River (Ethiopia), Omo River and is subdivided into four members known as Members I-IV. The members are numbered in the order in which they were deposited and date between 196 ka ~ 13-4 ka. Omo Kibish and the neighboring formations (Shungura Formation, Shungura and Usno Formation, Usno) have produced a rich paleoanthropological record with many hominin (e.g. ''Paranthropus boisei'') and stone tool (e.g. Oldowan tools) finds. The Kibish formation, in particular, is most notable for Richard Leakey's work there in 1967 during which he and his team found one of the oldest remains of anatomically modern ''Homo sapiens''. Known as Omo Kibish 1 (Omo I), the fossil was dated to 196 ± 5 ka old and is among two other Omo remains (Omo II and Omo III) that were found in Member I. The Omo fossils were more recently (in 2022) re-dated to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retouch (lithics)
Retouch is the act of producing scars on a stone flake after the ventral surface has been created. It can be done to the edge of an implement in order to make it into a functional tool, or to reshape a used tool. Retouch can be a strategy to reuse an existing lithic artifact and enable people to transform one tool into another tool. Depending on the form of classification that one uses, it may be argued that retouch can also be conducted on a core-tool, if such a category exists, such as a hand-axe. Retouch may simply consist of roughly trimming an edge by striking with a hammerstone, or on smaller, finer flake or blade tools it is sometimes carried out by pressure flaking. Other forms of retouch may include burination, which is retouch that is conducted in a parallel orientation to the flake margin. Retouch is often taken as one of the most obvious features distinguishing a tool from a waste by-product of lithic manufacture (debitage In archaeology, debitage is all the materi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nile Perch
The Nile perch (''Lates niloticus''), also known as the African snook, Goliath perch, African barramundi, Goliath barramundi, Giant lates or the Victoria perch, is a species of freshwater fish in family Latidae of order Perciformes. It is widespread throughout much of the Afrotropical realm, being native to the Congo River, Congo, Nile River, Nile, Senegal River, Senegal, Niger River, Niger and Lake Chad, Lake Volta, Volta, Lake Turkana, and other river basins. It also occurs in the brackish waters of Lake Maryut in Egypt. The Nile perch is a fish of substantial economic and food-security importance in East Africa. Originally described as ''Labrus niloticus,'' among the marine wrasses, the species has also been referred to as ''Centropomus niloticus''. Common names include African snook, Victoria perch (a misleading trade name, as the species is not native to Lake Victoria, though they have been introduced there), and many local names in various African languages, such as the Luo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not all catfish have prominent barbels or "whiskers", with some seemingly not having them. Siluriformes as a whole are Fish scale, scale-less, with neither the Armoured catfish, armour-plated nor the naked species having scales. This order of fish are Autapomorphy, defined by features of the skull and swimbladder. Catfish range in size and behavior from the three List of largest fish, largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivorous and scavenging bottom feeders, down to tiny ectoparasitic species known as the Candiru (fish), candirus. In the Southern United States, catfish species may be known by a variety of slang names, such as "mud cat", " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perciformes
Perciformes (), also called the Acanthopteri, is an order or superorder of ray-finned fish in the clade Percomorpha. ''Perciformes'' means " perch-like". Among the well-known members of this group are perches and darters ( Percidae), and also sea basses and groupers (Serranidae). This order contains many familiar freshwater temperate and tropical marine fish groups, but also extremophiles that have successfully colonized both the North and South Poles, as well as the deepest depths of the ocean. Taxonomy Formerly, this group was thought to be even more diverse than it is thought to be now, containing about 41% of all bony fish (about 10,000 species) and about 160 families, which is the most of any order within the vertebrates. However, many of these other families have since been reclassified within their own orders within the clade Percomorpha, significantly reducing the size of the group. In contrast to this splitting, other groups formerly considered distinct, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equus Burchellii
Burchell's zebra (''Equus quagga burchellii'') is a southern subspecies of the plains zebra. It is named after the British explorer and naturalist William John Burchell. Common names include bontequagga, Damaraland zebra, and Zululand zebra (Gray, 1824). Burchell's zebra is the only subspecies of zebra which may be legally farmed for human consumption. Physical characteristics Like most plains zebras, females and males are about the same size, standing at the shoulder. They weigh between . Year-round reproduction observed in this subspecies in Etosha National Park, Namibia, concludes synchronization of a time budget between males and females, possibly explaining the lack of sexual dimorphism. Burchell's zebras are described as being striped on the head, the neck, and the flanks, and sparsely down the upper segments of the limbs then fading to white. One or two shadow stripes rest between the bold, broad stripes on the haunch. This main distinguishing characteristic sets the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matupi Cave
Matupi Cave is a cave in the Mount Hoyo massif of the Ituri Rainforest, Democratic Republic of the Congo, where archaeologists have found evidence for Late Stone Age human occupation spanning over 40,000 years. The cave has some of the earliest evidence in the world for microlithic tool technologies. Location and significance Matupi Cave is one of some 40 caves in the Mount Hoyo limestone massif in the Ituri rainforest, Democratic Republic of the Congo. It is a large cave (c. 7 metres high, 8 metres deep and 5 metres wide), which makes it ideal for living. The Matupi Cave site was excavated in 1973-74 by a joint archaeological expedition from the Institut des Musées Nationaux du Zaïre (DRC) and the Royal Museum for Central Africa (Tervuren, Belgium). The excavation campaign was led by professor Francis Van Noten, then head of the Prehistory-Archaeology section in Tervuren. Excavations yielded Iron Age and Late Stone Age artifacts, as well as rich faunal and sporadic palyno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalophus
''Cephalophus'' is a mammal genus which contains at least fifteen species of duiker, a type of small antelope. Species Following Groves (2005), the species within ''Cephalophus'' include: * Aders's duiker ''Cephalophus adersi'' * Brooke's duiker ''Cephalophus brookei'' * Peters's duiker ''Cephalophus callipygus'' * Bay duiker ''Cephalophus dorsalis'' * Jentink's duiker ''Cephalophus jentinki'' * White-bellied duiker ''Cephalophus leucogaster'' * Red forest duiker ''Cephalophus natalensis'' * Black duiker ''Cephalophus niger'' * Black-fronted duiker ''Cephalophus nigrifrons'' * Ogilby's duiker ''Cephalophus ogilbyi'' * Ruwenzori duiker ''Cephalophus rubidus'' * Red-flanked duiker ''Cephalophus rufilatus'' * Yellow-backed duiker ''Cephalophus silvicultor'' * Abbott's duiker ''Cephalophus spadix'' * Weyns's duiker ''Cephalophus weynsi'' * Zebra duiker The zebra duiker (''Cephalophus zebra'') is a small antelope found primarily in Liberia, as well as the Ivory Coast, Sie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Forest Hog
The giant forest hog (''Hylochoerus meinertzhageni''), the only member of its genus (''Hylochoerus''), is native to wooded habitats in Africa and is one of the largest wild members of the pig family, Suidae, along with a few subspecies of the wild boar. It was first described in 1904. The specific name honours Richard Meinertzhagen, who shot the type specimen in Kenya and had it shipped to the Natural History Museum in England. Description The giant forest hog is, on average, the largest living species of suid. Adults can measure from in head-and-body length, with an additional tail length of . Adults stand in height at the shoulder, and can weigh from .Novak, R. M. (editor) (1999). ''Walker's Mammals of the World.'' Vol. 2. 6th edition. Johns Hopkins University Press, Baltimore. pp. 1059–1060. Kingdon, J. (1997). ''The Kingdon Guide to African Mammals.'' Academic Press Limited, London. pp. 332–333. Females are smaller than males. Females weigh a median of approximatel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnivore
A carnivore , or meat-eater (Latin, ''caro'', genitive ''carnis'', meaning meat or "flesh" and ''vorare'' meaning "to devour"), is an animal or plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ... whose nutrition and energy requirements are met by eating, consumption of animal tissue (biology), tissues (mainly muscle, adipose tissue, fat and other soft tissues) as food, whether through predation or scavenger, scavenging. Nomenclature Mammal order The technical term for mammals in the order (biology), order Carnivora is ''carnivoran'', and they are so-named because most member species in the group have a carnivorous diet, but the similarity of the name of the order and the name of the diet causes confusion. Many but not all carnivorans are meat eaters; a few, such as the fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primate
Primates is an order (biology), order of mammals, which is further divided into the Strepsirrhini, strepsirrhines, which include lemurs, galagos, and Lorisidae, lorisids; and the Haplorhini, haplorhines, which include Tarsiiformes, tarsiers and simians (monkeys and apes). Primates arose 74–63 million years ago first from small terrestrial animal, terrestrial mammals, which adapted for life in tropical forests: many primate characteristics represent adaptations to the challenging environment among Canopy (biology), tree tops, including large brain sizes, binocular vision, color vision, Animal communication, vocalizations, shoulder girdles allowing a large degree of movement in the upper limbs, and opposable thumbs (in most but not all) that enable better grasping and dexterity. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equidae
Equidae (commonly known as the horse family) is the Taxonomy (biology), taxonomic Family (biology), family of Wild horse, horses and related animals, including Asinus, asses, zebra, zebras, and many extinct species known only from fossils. The family evolved more than 50 million years ago, in the Eocene epoch, from a small, multi-toed ungulate into larger, single-toed animals. All Extant taxon, extant species are in the genus ''Equus (genus), Equus'', which originated in North America. Equidae belongs to the order Perissodactyla, which includes the extant tapirs and rhinoceros, and several extinct families. It is more specifically grouped within the superfamily (taxonomy), superfamily Equoidea, the only other family being the extinct Palaeotheriidae. The term equid refers to any member of this family, including any equinae, equine. Evolution The oldest known fossils assigned to Equidae were found in North America, and date from the early Eocene epoch, 54 million years ago. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
