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The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living organisms.This number, along with the visual appearance of the chromosome, is known as the karyotype, [1] [2] [3] and can be found by looking at the chromosomes through a microscope.
The name "orangutan" (also written orang-utan, orang utan, orangutang, and ourang-outang [1]) is derived from the Malay words orang, meaning "person", and hutan, meaning "forest". [ 2 ] [ 3 ] The locals originally used the term for actual forest-dwelling humans, but the word underwent a semantic extension to include apes of the Pongo genus at ...
Sumatran orangutan (Pongo abelli) Hominoidea is a superfamily of primates. Members of this superfamily are called hominoids or apes, and include gorillas, chimpanzees, orangutans, gibbons, bonobos, and humans. Hominoidea is one of the six major groups in the order Primates. The majority are found in forests in Southeastern Asia and Equatorial Africa, with the exception of humans, which have ...
The human genome has been sequenced, as well as the chimpanzee genome. Humans have 23 pairs of chromosomes, while chimpanzees, gorillas and orangutans have 24. Human chromosome 2 is a fusion of two chromosomes 2a and 2b that remained separate in the other primates. [9]
The Bornean orangutan and the Sumatran orangutan diverged about 400,000 years ago, [4] with a continued low level of gene flow between them since then. [4] The two orangutan species were considered merely subspecies until 1996; they were elevated to species following sequencing of their mitochondrial DNA. The Bornean orangutan has three ...
An orangutan will break off a tree branch that is about a foot long, snap off the twigs and fray one end with its teeth. [10] The orangutan will use the stick to dig in tree holes for termites. They will also use the stick to poke a bee's nest wall, move it around and catch the honey. In addition, orangutans use tools to eat fruit. [11]
The phylogenetic split of Hominidae into the subfamilies Homininae and Ponginae is dated to the middle Miocene, roughly 18 to 14 million years ago.This split is also referenced as the "orangutan–human last common ancestor" by Jeffrey H. Schwartz, professor of anthropology at the University of Pittsburgh School of Arts and Sciences, and John Grehan, director of science at the Buffalo Museum.
Hylarana raniceps. There are at least 180 species of amphibians. [2]One notable species is the Bornean flat-headed frog, Barbourula kalimantanensis.This frog, found in cold, fast-flowing mountain streams, was previously though to be the lungless, but subsequent examination revealed this was not the case.