Instruct: Given a question, retrieve documents that answer the question.
Query: How tall is the African elephant?
One species of African elephant, the bush elephant, is the largest living terrestrial animal, while the forest elephant is the third-largest. Their thickset bodies rest on stocky legs, and they have concave backs. Their large ears enable heat loss. The upper lip and nose form a trunk. The trunk acts as a fifth limb, a sound amplifier, and an important method of touch. African elephants' trunks end in two opposing lips, whereas the Asian elephant trunk ends in a single lip. In "L. africana", males stand tall at the shoulder and weigh , while females stand tall and weigh ; "L. cyclotis" is smaller with male shoulder heights of up to . The largest recorded individual stood at the shoulder and weighed . The tallest recorded individual stood at the shoulder and weighed .
The largest Indian elephant was high at the shoulder. In 1985, two large elephant bulls were spotted for the first time in Bardia National Park, and named "Raja Gaj" and "Kanchha". They roamed the park area together and occasionally visited female herds. "Raja Gaj" stood tall at the shoulder and had a massive body weight. His forehead and domes were more prominent than in other Asian bull elephants. His appearance has been compared to that of a Stegodon and mammoth due to his high bi-domed shaped head.
Both species of wildebeest are even-toed, horned, greyish-brown ungulates resembling cattle. Males are larger than females and both have heavy forequarters compared to their hindquarters. They have broad muzzles, Roman noses, and shaggy manes and tails. The most striking morphological differences between the black and blue wildebeest are the orientation and curvature of their horns and the color of their coats. The blue wildebeest is the bigger of the two species. In males, blue wildebeest stand 150 cm tall at the shoulder and weigh around 250 kg, while the black wildebeest stands 111 to 120 cm tall and weighs about 180 kg. In females, blue wildebeest have a shoulder height of 135 cm and weigh 180 kg while black wildebeest females stand 108 cm at the shoulder and weigh 155 kg. The horns of blue wildebeest protrude to the side, then curve downwards before curving up back towards the skull, while the horns of the black wildebeest curve forward then downward before curving upwards at the tips. Blue wildebeest tend to be a dark grey color with stripes, but may have a bluish sheen. The black wildebeest has brown-coloured hair, with a mane that ranges in color from cream to black, and a cream-coloured tail. The blue wildebeest lives in a wide variety of habitats, including woodlands and grasslands, while the black wildebeest tends to reside exclusively in open grassland areas. In some areas, the blue wildebeest migrates over long distances in the winter, whereas the black wildebeest does not. The milk of the female black wildebeest contains a higher protein, lower fat, and lower lactose content than the milk of the blue wildebeest. Wildebeest can live more than 40 years, though their average lifespan is around 20 years.
Carthaginian forces also employed war-elephants, both within Africa and during overseas operations, including campaigns in Iberia and most famously Hannibal's invasion of Italy. These beasts were the now-extinct North African elephant ("Loxodonta" ["africana"] "pharaoensis"), probably a subspecies of the African forest elephant ("Loxodonta cyclotis"), which is smaller than the African bush elephant ("Loxodonta africana") and the Indian elephants ("elephas maximus") used by the Seleucids. In battle, the elephants functioned as a psychological weapon, frightening the opposing men and horses into flight or creating gaps in the enemy line that could be exploited by Carthaginian cavalry and infantry. Modern scholars have disputed whether or not Carthaginian elephants were furnished with turrets in combat; despite frequent assertions to the contrary, the evidence indicates that African forest elephants could and did carry turrets in certain military contexts.
The black wildebeest or white-tailed gnu ("Connochaetes gnou") is one of the two closely related wildebeest species. It is a member of the genus "Connochaetes" and family Bovidae. It was first described in 1780 by Eberhard August Wilhelm von Zimmermann. The black wildebeest is typically in head-and-body length, and the typical weight is . Males stand about at the shoulder, while the height of the females is . The black wildebeest is characterised by its white, long, horse-like tail. It also has a dark brown to black coat and long, dark-coloured hair between its forelegs and under its belly.
The elephant has been a contributor to Thai society and its icon for many centuries. The elephant has had a considerable impact on Thai culture. The Thai elephant (, "chang Thai") is the official national animal of Thailand. The elephant found in Thailand is the Indian elephant ("Elephas maximus indicus"), a subspecies of the Asian elephant. In the early-1900s there were an estimated 100,000 domesticated or captive elephants in Thailand. In mid-2007 there were an estimated 3,456 domesticated elephants left in Thailand and roughly a thousand wild elephants. It became an endangered species in 1986.
The elephant plays an important part in the culture of the subcontinent and beyond, being featured prominently in the "Panchatantra" fables and the Buddhist "Jataka" tales. They play a major role in Hinduism: the god Ganesha's head is that of an elephant, and the "blessings" of a temple elephant are highly valued. Elephants are frequently used in processions where the animals are adorned with festive outfits.
The largest land mammal extant today is the African bush elephant. The largest extinct land mammal known was long considered to be "Paraceratherium orgosensis", a rhinoceros relative thought to have stood up to tall, measured over long and may have weighed about 17 tonnes. In 2015, a study suggested that one example of the proboscidean "Palaeoloxodon namadicus" may have been the largest land mammal ever, based on extensive research of fragmentary leg bone fossils from one individual, with a maximum estimated size of 22 tonnes.
The elephant is Thailand's national symbol. Although there were 100,000 elephants in Thailand a century ago, the population of elephants in the wild has dropped to an estimated 2,000. Poachers have long hunted elephants for ivory, meat, and hides. Young elephants are often captured for use in tourist attractions or as work animals, although their use has declined since the government banned logging in 1989. There are now more elephants in captivity than in the wild, and environmental activists claim that elephants in captivity are often mistreated.
Other threats to elephants include habitat destruction and fragmentation. The Asian elephant lives in areas with some of the highest human populations. Because they need larger amounts of land than other sympatric terrestrial mammals, they are the first to be affected by human encroachment. In extreme cases, elephants may be confined to small islands of forest among human-dominated landscapes. Elephants cannot coexist with humans in agricultural areas due to their size and food requirements. Elephants commonly trample and consume crops, which contributes to conflicts with humans, and both elephants and humans have died by the hundreds as a result. Mitigating these conflicts is important for conservation. One proposed solution is the provision of ‘urban corridors’ which allow the animals access to key areas.
Since 1986, the Asian elephant has been listed as Endangered on the IUCN Red List, as the population has declined by at least 50 percent over the last three generations, estimated to be 60–75 years. It is primarily threatened by loss of habitat, habitat degradation, fragmentation and poaching. In 2003, the wild population was estimated at between 41,410 and 52,345 individuals. Female captive elephants have lived beyond 60 years when kept in semi-natural surroundings, such as forest camps. In zoos, Asian elephants die at a much younger age; captive populations are declining due to a low birth and high death rate.
Gabi lived in the same enclosure with his mother Tamar and the zoo's three other female elephants for nearly 5 years. By 2010, however, Gabi was growing increasingly aggressive and anti-social — typical behavior for a 5-year-old bull elephant. The zoo decided to send him to the Gaziantep Zoo in Turkey, where it is hoped he will sire his own offspring and thereby increase the number of Asian elephants in captivity.
Lake Victoria (elevation ), with an area of , is the largest lake in Africa. It is not in the rift valley, instead occupying a depression between the eastern and western rifts formed by the uplift of the rifts to either side. Lakes Victoria, Tanganyika, and Malawi are sometimes collectively known as the African Great Lakes.
This species of wildebeest seems to have evolved around 2.5 million years ago. The black wildebeest is believed to have diverged from the blue wildebeest to become a distinct species around a million years ago, in the mid- to late Pleistocene. Fossil evidence suggests that blue wildebeest were quite common in the Cradle of Humankind in the past. Apart from eastern Africa, fossils are commonly found in Elandsfontein, Cornelia, and Florisbad.
Black wildebeest are sexually dimorphic, with females being smaller in size and more slender than males. The head-and-body length is typically between . Males reach about at the shoulder, while females reach . Males typically weigh and females . A distinguishing feature in both sexes is the tail, which is long and similar to that of a horse. Its bright-white colour gives this animal the vernacular name of "white-tailed gnu", and also distinguishes it from the blue wildebeest, which has a black tail. The length of the tail ranges from .
The Buddhist tradition states that Buddha came into the womb of his mother in the form of an elephant having six tusks. According to Jaina tradition, each of the mother of the twenty-four thirthankars dreamt of fourteen auspicious objects, which included an elephant. 
In Hinduism, Ganesh, a god with the elephant’s head has been an object of reverence and worship for more than two millennia. He is therefore called as Gajanan(Gaj=elephant, aanan= faced). Several deities and mythological figures have elephants as their conveyance (vahan) including Balarama, Skanda and aiyanar.
The elephants comprise three living species and are the largest living land animals.Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands. All four species are endangered.The treeshrews are small mammals native to the tropical forests of Southeast Asia. Although called treeshrews, they are not true shrews and are not all arboreal.The two species of colugos make up the order Dermoptera. They are arboreal gliding mammals found in Southeast Asia.The order Primates contains humans and their closest relatives: lemurs, lorisoids, monkeys, and apes.Rodents make up the largest order of mammals, with over 40 percent of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be keep short by gnawing. Most rodents are small though the capybara can weigh up to 45 kg (100 lb).
Asian elephants are quintessential flagship species, deployed to catalyze a range of conservation goals, including:About half of the global zoo elephant population is kept in European zoos, where they have about half the median life span of conspecifics in protected populations in range countries. This discrepancy is clearest in Asian elephants: infant mortality is twice that seen in Burmese timber camps, and adult survivorship in zoos has not improved significantly in recent years. One risk factor for Asian zoo elephants is being moved between institutions, with early removal from the mother tending to have additional adverse effects. Another risk factor is being born into a zoo rather than being imported from the wild, with poor adult survivorship in zoo-born Asians apparently being conferred prenatally or in early infancy. Likely causes for compromised survivorship is stress and/or obesity.
Since the late 1940s, a strand of scholarship has argued that the African forest elephants used by Numidia, the Ptolemies and the military of Carthage did not carry howdahs or turrets in combat, perhaps owing to the physical weakness of the species. Some allusions to turrets in ancient literature are certainly anachronistic or poetic invention, but other references are less easily discounted. There is explicit contemporary testimony that the army of Juba I of Numidia included turreted elephants in 46 BC. This is confirmed by the image of a turreted African elephant used on the coinage of Juba II. This also appears to be the case with Ptolemaic armies: Polybius reports that at the battle of Raphia in 217 BC the elephants of Ptolemy IV carried turrets; these elephants were significantly smaller than the Asian elephants fielded by the Seleucids and so presumably African forest elephants. There is also evidence that Carthaginian war elephants were furnished with turrets and howdahs in certain military contexts.
Further northwest is Lake Victoria on the Kenya–Uganda–Tanzania border. This is the largest lake in Africa by surface area and is traditionally named as the source of the Nile River. Southwest of this, separating Tanzania from the Democratic Republic of the Congo, is Lake Tanganyika. This lake is estimated to be the second deepest lake in the world after Lake Baikal in Siberia. The western portion of the country between Lakes Victoria, Tanganyika, and Malawi consists of flat land that has been categorised by the World Wildlife Fund as part of the Central Zambezian Miombo woodlands ecoregion. Just upstream from the Kalambo Falls, there is one of the most important archaeological sites in Africa.
In 2008, the IUCN listed the Asian elephant as endangered due to a 50% population decline over the past 60–75 years while CITES lists the species under Appendix I. Asian elephants once ranged from Syria and Iraq (the subspecies "Elephas maximus asurus"), to China (up to the Yellow River) and Java. It is now extinct in these areas, and the current range of Asian elephants is highly fragmented. The total population of Asian elephants is estimated to be around 40,000–50,000, although this may be a loose estimate. It is likely that around half of the population is in India. Although Asian elephants are declining in numbers overall, particularly in Southeast Asia, the population in the Western Ghats appears to be increasing.
African forest elephants travel in smaller groups than other elephant species. A typical group size consists of 2 to 8 individuals. The average family unit is 3 to 5 individuals, usually made up of female relatives. Most family groups are a mother and several of her offspring, or several groups of females and their offspring that interact with one another, especially at forest clearings. Female offspring are philopatric, male offspring disperse at maturity. Unlike African savanna elephants ("Loxodonta africana"), African forest elephants (Loxodonta cyclotis) do not usually interact with other family groups. Male African forest elephants tend to be solitary and only associate with other elephants during the mating season. Males have a dominance hierarchy based on size.
Elephants are the largest living terrestrial animals. African bush elephants are the largest species, with males typically being tall at the shoulder and while females stand tall at the shoulder with a body mass of . Male Asian elephants are usually about tall at the shoulder and whereas females are tall at the shoulder and . African forest elephants are the smallest species, usually being around tall at the shoulder and . Male African elephants are typically 23% taller than females, whereas male Asian elephants are only around 15% taller than females. The skeleton of the elephant is made up of 326–351 bones. The vertebrae are connected by tight joints, which limit the backbone's flexibility. African elephants have 21 pairs of ribs, while Asian elephants have 19 or 20 pairs.
In 2011, the Cleveland Metroparks Zoo opened its newest exhibit, African Elephant Crossing. At a total cost of $25 million, the state of the art habitat quadrupled the elephants' living space, allowing the zoo to increase its number of African elephants from three, to a herd of eight to ten. The exhibit features two large ranges—the Savanna and the Mopani—spread out over several acres. The ranges include deep ponds so that the elephants can swim, as well as expanded sleeping quarters. Areas of the ranges are also heated to maximize the elephants' habitat during the winter months. Periodically throughout the day, the elephants are shepherded across the pathway between the ranges, allowing visitors an up-close view of the animals. In addition to expanding the number of African elephants, the African Elephant Crossing exhibit introduced meerkats, naked mole rats, an African rock python and several species of birds.
African elephants are highly intelligent, and they have a very large and highly convoluted neocortex, a trait they share with humans, apes and some dolphin species. They are amongst the world's most intelligent species. With a mass of just over 5 kg (11 lb), elephant brains are larger than those of any other land animal, and although the largest whales have body masses twentyfold those of a typical elephant, whale brains are barely twice the mass of an elephant's brain. The elephant's brain is similar to that of humans in terms of structure and complexity. For example, the elephant's cortex has as many neurons as that of a human brain, suggesting convergent evolution.