What the sources say
Asian ElephantElephas maximus
Every figure, record and mechanism on the Asian Elephant profile was written from a source, and this is the working table behind it: 53 claims checked word for word against these sources. The left column is what the page says. The right column is the source's own words, copied, not paraphrased; a ... marks a cut and[brackets] an insertion. Open any source and check it yourself.
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Source
01
Plotnik et al. 2011
Plotnik et al. (2011). Elephants know when they need a helping trunk in a cooperative task. Proceedings of the National Academy of Sciences.
- The page saysintelligent
- The source says
elephants can learn to coordinate with a partner in a task requiring two individuals to simultaneously pull two ends of the same rope to obtain a reward
Note: tags: intelligent (problem-solving)
Source
02
Smithsonian's National Zoo and Conservation Biology Institute
Asian elephant. Smithsonian's National Zoo and Conservation Biology Institute.
- The page saysA boneless trunk with about 150,000 muscle units
- The source says
It contains no bones, but is composed of muscles ... The trunk has about 150,000 muscle units and tendons
Note: tagline - The page saysa pregnancy of nearly two years
- The source says
Gestation is between 21.5 and 22 months
Note: tagline; 22 months is under two years. The source's 'longest gestation period for any animal' was cut (frilled shark and alpine salamander gestations are longer) - The page saysrumbles humans can barely hear
- The source says
low-pitched sounds that are barely audible to humans. These powerful infrasonic rumbles
Note: tagline - The page saysForests and open grassy glades in India and Southeast Asia
- The source says
Asian elephants are found in isolated pockets of India and Southeast Asia, including Sumatra and Borneo. ... Asian elephants are considered forest animals. However, they have been observed to prefer zones that include intermittent open grassy glades.
Note: stats.habitat - The page saysMostly grasses, plus leaves, roots, bark and fruit
- The source says
They feed primarily on grasses but also consume large amounts of browse, including leaves, roots, vines, twigs, shoots and bark, as well as fruit.
Note: stats.diet - The page saysA trunk with about 150,000 muscle units and tendons
- The source says
The trunk has about 150,000 muscle units and tendons
Note: stats.superpower - The page saysDeadly
- The source says
Crop raiding is frequent and can create situations that can lead to elephant deaths, as well as human deaths.
Note: stats.dangerLevel - The page saysElephants are the largest living land animals.
- The source says
Elephants are the largest living land animal.
- The page saysAdult Asian elephants weigh on average between 6,000 and 12,000 pounds (2,750 to 5,420 kilograms).
- The source says
adult Asian elephants weigh on average between 6,000 and 12,000 pounds (2,750 and 5,420 kilograms)
- The page saysThey typically stand 1.8 to 3.8 meters tall at the shoulder.
- The source says
They typically stand 6 to 12 feet (1.8 to 3.8 meters) tall at the shoulder.
- The page saysThe trunk is a fusion of the nose and upper lip.
- The source says
The trunk is a fusion of the nose and upper lip.
- The page saysIt contains no bones, but it has about 150,000 muscle units and tendons.
- The source says
It contains no bones, but is composed of muscles, blood and lymph vessels ... The trunk has about 150,000 muscle units and tendons
- The page saysIt can hold about 2 gallons (7.57 liters) of water.
- The source says
It can hold about 2 gallons (7.57 liters) of water.
- The page saysAt the tip sits one small "finger" that aids with precision.
- The source says
Asian elephants have one small projection at the end of their trunk, called a "finger," which aids with precision.
- The page saysBig ears work as cooling devices too. Flapping them on hot days cools the blood in the ears' veins.
- The source says
Their large ears function as cooling devices. ... As an elephant flaps its ears on hot days, the blood in these veins cools
- The page saysAsian elephants are herbivores
- The source says
Asian elephants are herbivores
- The page saysThey spend about three-quarters of each day eating or moving toward food or water.
- The source says
spend about three-quarters of each day eating or moving toward a food or water source
- The page saysThey feed primarily on grasses, but they also eat leaves, roots, vines, twigs, shoots, bark and fruit.
- The source says
They feed primarily on grasses but also consume large amounts of browse, including leaves, roots, vines, twigs, shoots and bark, as well as fruit.
- The page saysIn the wild an elephant needs about 165 to 330 pounds (74 to 150 kilograms) of food and about 50 gallons (189 liters) of water per day.
- The source says
they must consume great amounts of food, about 165 to 330 pounds (74 to 150 kilograms) per day and about 50 gallons (189 liters) of water per day in the wild
- The page saysAn elephant absorbs only about 44 percent of what it eats, so it has to put away huge amounts.
- The source says
Elephants only assimilate about 44 percent of what they eat. Therefore, they must consume great amounts.
Note: 'absorb' is the writer's gloss of assimilate - The page saysWild herds live in isolated pockets of India and Southeast Asia, including Sumatra and Borneo.
- The source says
Asian elephants are found in isolated pockets of India and Southeast Asia, including Sumatra and Borneo.
- The page saysIndia is home to almost half of the total population of Asian elephants.
- The source says
India by far has the largest population of elephants for a single country, with almost half of the total population of Asian elephants in the world living within its borders.
- The page saysThey count as forest animals, yet they have been seen to prefer zones with intermittent open grassy glades.
- The source says
Asian elephants are considered forest animals. However, they have been observed to prefer zones that include intermittent open grassy glades.
- The page saysElephants talk in infrasonic rumbles. These are low-pitched sounds that are barely audible to humans.
- The source says
Elephants communicate over long distances using low-pitched sounds that are barely audible to humans. These powerful infrasonic rumbles
- The page saysOther elephants can hear and understand them from more than 2 miles away.
- The source says
can be heard and understood by other elephants more than 2 miles away
- The page saysNearly two years
- The source says
Gestation is between 21.5 and 22 months
Note: blockquote lead-in; 22 months - The page saysA female Asian elephant carries her calf for between 21.5 and 22 months.
- The source says
Gestation is between 21.5 and 22 months
- The page saysUsually one calf (occasionally two) is born, weighing between 150 and 350 pounds (68 to 158 kilograms).
- The source says
Usually one calf (occasionally two) is born and weighs between 150 and 350 pounds (68 to 158 kilograms).
- The page saysA grown bull or cow has no enemies except humans. A young elephant is another matter: where the two ranges overlap, tigers attack them.
- The source says
Adult bulls and cows have no enemies, except for humans, but young elephants are susceptible to attacks by tigers in the areas where their ranges overlap.
- The page saysThe evidence points to a typical lifespan into the mid-50s
- The source says
Evidence suggests that Asian elephants typically live into their mid-50s
- The page saysthe data on wild Asian elephants is not consistent enough for an accurate estimate
- The source says
there is not enough consistent data available on wild Asian elephants to accurately estimate their lifespan
- The page saysThe median life expectancy for females is 47 years
- The source says
Median life expectancy for female Asian elephants is 47 years old.
- The page saysCrop raiding is frequent, and it can lead to elephant deaths as well as human deaths.
- The source says
Crop raiding is frequent and can create situations that can lead to elephant deaths, as well as human deaths.
- The page saysElephant ears contain many blood vessels. When an elephant waves them on a hot day, the blood in those vessels gets cooler.
- The source says
The ears contain many blood vessels. As an elephant flaps its ears on hot days, the blood in these veins cools
- The page saysThat cooled blood helps cool the brain and then flows back through the body, which lowers body temperature by several degrees.
- The source says
the blood in these veins cools, which then cools the elephant's brain and travels back through the body, reducing body temperature by several degrees
- The page saysTypically into their mid-50s, the evidence suggests, although there is not yet enough consistent data on wild Asian elephants for an accurate estimate.
- The source says
Evidence suggests that Asian elephants typically live into their mid-50s, but there is not enough consistent data available on wild Asian elephants to accurately estimate their lifespan
- The page saysFemales have a median life expectancy of 47 years.
- The source says
Median life expectancy for female Asian elephants is 47 years old.
- The page saysA trunk with no bones
- The source says
It contains no bones
Note: heading - The page saysgiant-size
- The source says
Elephants are the largest living land animal.
Note: tags: giant-size
Source
03
AnAge: The Animal Ageing and Longevity Database, Human Ageing Genomic Resources
AnAge entry for Elephas maximus. AnAge: The Animal Ageing and Longevity Database, Human Ageing Genomic Resources.
- The page saysthe maximum longevity listed in a database of animal lifespans is 79.6 years, in captivity
- The source says
Maximum longevity 79.6 years (captivity)
- The page saysweightKg: 3178
- The source says
Adult weight 3,178,000 g
Note: 3,178 kg; Colossal, inside Smithsonian's 2,750 to 5,420 kg
Source
04
Williams et al. 2020
Williams et al. (2020). Elephas maximus. The IUCN Red List of Threatened Species 2020: e.T7140A45818198.
- The page saysEndangered
- The source says
IUCN Red List category: Endangered (EN).
Note: stats.conservationStatus - The page saysThe IUCN Red List lists the species as Endangered.
- The source says
IUCN Red List category: Endangered (EN).
Source
05
Stoeger et al. 2012
Stoeger et al. (2012). An Asian Elephant Imitates Human Speech. Current Biology.
- The page saysResearchers documented a male Asian elephant named Koshik imitating human speech. He put his trunk inside his mouth and matched Korean in such detail that Korean native speakers could understand and transcribe it.
- The source says
we document a male Asian elephant ( Elephas maximus ) that imitates human speech, matching Korean formants and fundamental frequency in such detail that Korean native speakers can readily understand and transcribe the imitations. To create these very accurate imitations of speech formant frequencies, this elephant (named Koshik) places his trunk inside his mouth
- The page saysOne male Asian elephant named Koshik did. He placed his trunk inside his mouth to shape the sounds.
- The source says
this elephant (named Koshik) places his trunk inside his mouth, modulating the shape of the vocal tract during controlled phonation
- The page saysKorean native speakers could understand and write down what he said.
- The source says
Korean native speakers can readily understand and transcribe the imitations
- The page saysTheir transcriptions showed his imitations corresponded to five Korean words, including "annyong" (hello) and "anja" (sit down).
- The source says
analyzing transcriptions made by 16 Korean native speakers on 47 recordings of Koshik’s utterances ... indicating that Koshik’s speech imitations correspond to the following five words: “annyong” (“hello,” Audio S1 ), “anja” (“sit down,” Audio S2 )
- The page saysKoshik the elephant did the same job with his trunk inside his mouth, matching Korean so closely that native speakers could understand and transcribe it
- The source says
Korean native speakers can readily understand and transcribe
Source
06
Plotnik, de Waal & Reiss 2006
Plotnik, de Waal & Reiss (2006). Self-recognition in an Asian elephant. Proceedings of the National Academy of Sciences.
- The page saysMirror self-recognition has long seemed limited to humans and apes, but researchers who tested three Asian elephants reported a successful study.
- The source says
mirror self-recognition (MSR) has long seemed limited to humans and apes ... We exposed three Asian elephants (Elephas maximus) to a large mirror ... Here, we report a successful MSR elephant study
Note: abstract only: kept to what the abstract states (no count of elephants that passed) - The page saysResearchers showed a large mirror to three Asian elephants and put marks on their heads to see whether they would use the mirror to touch them.
- The source says
We exposed three Asian elephants (Elephas maximus) to a large mirror to investigate their responses. ... Visible marks and invisible sham-marks were applied to the elephants' heads to test whether they would pass the litmus "mark test" for MSR in which an individual spontaneously uses a mirror to touch an otherwise imperceptible mark on its own body
- The page saysThey reported a successful mirror self-recognition study.
- The source says
Here, we report a successful MSR elephant study
- The page saysThe skill had long seemed limited to humans and apes.
- The source says
MSR has long seemed limited to humans and apes
How the table was made: a writer drafted the profile from these sources and logged each claim with its quote, a reviewer with nothing but this table checked every sentence said no more than its quote, and a script confirmed each quote appears word for word in the source. The method is in the site'sAbout page.