Both species are classified as Critically Endangered by the IUCN all subspecies are classified as Critically Endangered with the exception of the mountain gorilla, which is classified as Endangered. There are thought to be around 316,000 western gorillas in the wild, and 5,000 eastern gorillas. Lowland gorillas live in dense forests and lowland swamps and marshes as low as sea level, with western lowland gorillas living in Central West African countries and eastern lowland gorillas living in the Democratic Republic of the Congo near its border with Rwanda. The mountain gorilla inhabits the Albertine Rift montane cloud forests of the Virunga Volcanoes, ranging in altitude from 2,200 to 4,300 metres (7,200 to 14,100 ft). Although their range covers a small percentage of Sub-Saharan Africa, gorillas cover a wide range of elevations. Gorillas' natural habitats cover tropical or subtropical forest in Sub-Saharan Africa. Gorillas tend to live 35–40 years in the wild. The Eastern gorilla is distinguished from the Western by darker fur colour and some other minor morphological differences. They tend to live in troops, with the leader being called a silverback. Gorillas are the largest living primates, reaching heights between 1.25 and 1.8 metres, weights between 100 and 270 kg, and arm spans up to 2.6 metres, depending on species and sex. The DNA of gorillas is highly similar to that of humans, from 95 to 99% depending on what is included, and they are the next closest living relatives to humans after chimpanzees and bonobos. The genus Gorilla is divided into two species: the eastern gorilla and the western gorilla, and either four or five subspecies. Flickr’s response was much the same as Google’s: the company apparently removed the word “ape” from its tagging lexicon entirely.Gorillas are herbivorous, predominantly ground-dwelling great apes that inhabit the tropical forests of equatorial Africa. The Yahoo-owned photo sharing platform labelled a picture of a black man as “ape”, and a photo of the Dachau concentration camp as “jungle gym”. At the same time that product was launched, Flickr released a similar feature, auto-tagging – which had an almost identical set of problems. That is particularly true of the first wave of image-recognition systems, of which Google Photos was a part. Such technologies are frequently described as a “black box”, capable of producing powerful results, but with little ability on the part of their creators to understand exactly how and why they make the decisions they do. The failure of the company to develop a more sustainable fix in the following two years highlights the extent to which machine learning technology, which underpins the image recognition feature, is still maturing. But Google Assistant will correctly identify the primates, as will Google’s business-to-business image recognition service Google Cloud Vision. The gorilla blindness is found in other places across Google’s platform: Google Lens, a camera app that identifies objects in images, will also refuse to recognise gorillas. Google confirmed that the terms were removed from searches and image tags as a direct result of the 2015 incident, telling the magazine that: “Image labelling technology is still early and unfortunately it’s nowhere near perfect”. Photos accurately tagged images of pandas and poodles, but consistently returned no results for the great apes and monkeys – despite accurately finding baboons, gibbons and orangutans. That’s the conclusion drawn by Wired magazine, which tested more than 40,000 images of animals on the service.
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