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Origin of Camels

10/1/2021

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A ”GRANNY MYTH-BUSTER”  COURSE CORRECTION
When I was a small child ‒ at least a hundred and fifty years ago if it was a day ‒ my mother took me to the Shriners’ circus in Los Angeles. 
I suppose I was thrilled as any child would be but later, all I can remember about the show was four or five camels running around in a circle. I decided then that camels had to be pretty stupid if that was the only trick they could learn.

What can I say? Children judge hastily.
I SAID CAMELOPS, NOT  CANTALOUPES!
​
Did you learn in school where camel originated? Probably you were taught that camels are found primarily in desert environments of India, Asia and Africa. 
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Not wrong, but not the full story. Today, there are only six surviving animals which make up all branches of the Camel family. To help with the often-confusing terminology, the following chart hopefully explains the classifications.
FAMILY:                            CAMELIDAE FAMILY
                                           ▼                              ▼
GENUS:                    Camelus                        Camelids
                                 ▼         ▼                       ▼           ▼
SPECIES:          Bactrian   Dromedary      Lama Auchenia
                                                                       ▼           ▼
                                                       
             Llama    Vicuña
                                                                     Alpaca
                                                                    Guanaco
Those classified as true camels are the Camelus (Genus): the Bactrian camel and the Arabian dromedary. The others four are classified as Camelids (Genus) and all reside in South America. ​
All living camels are descendents of the Camelops
.
​
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​The two species of camels, llamas, and alpacas are now domesticated and primarily live as livestock. There are 1,400 Bactrian camels still in the wild and those are protected. The Guanaco and Vicuña also live in the wild.
​
In addition, there are herds wild camels in Australia which were imported to that country in the mid-eighteen hundreds.
▲ Living members of the Camelidae Family
Image Source: biologydiscussion.com/origin-of-camels
               Image Credit: Jjron  ▼ Image Source:
​             commons.wikimedia.org/w/Dromedary
 
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​● Dromedary (Arabian) Camels
Dromedaries have one hump and are found in the Middle East, Northern India, and Africa. The species has been domesticated since ancient times and has not occurred in the wild for at least 2 thousand years.

The dromedary can lose up to 30% of its water content and is therefore able to withstand arid desert conditions. Throughout the Old World, they were used for transportation and as a pack animal. Many indigenous groups still rely on this species as a source of milk and meat.

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● Bactrian Camels
Bactrian camels have two humps and are found in the arid regions in central Asia. Specifically, they stick to the Gobi Desert of northern China and southern Mongolia.

oth Bactrian and Arabic camels are related but developed separately between .7 and 1.5 million years ago.             
Image Credit: J. Patrick Fischer ▲  Image
​                                                                                                           Source: 
commons.wikimedia.org/w/Dromedary

The conservation status of the wild Bactrian camel is considered critically endangered. The wild Bactrian lives in herds numbering from 6 to 30 members, depending on the availability of food and water. Its nostrils are long and very thin and it has a double set of long eyelashes. Both of these characteristics protect this species from the strong winds and blowing sands of desert storms.

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THE CAMELIDAE FAMILY TREE
If you have ever attempted to develop a family tree, you know how difficult it is to organize and decide on the format. Out of at least a zillion charts, this was the easiest for me to read and understand. Adding to the confusion are the names of the families, genus, and species of the prehistoric camels. I apologize for any misinterpretations of the names and spellings. Also remember that picture are artist drawings based on the excavated skeletons.

Starting at the bottom of the chart, in the Eocene period of the Cenozoic Era, about 58 to 37 million years ago, the first progenitor of the camel evolved… the protylopus.  Forget about pronunciation.

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Image Source: https://www.biologydiscussion.com/animals-2/origin-of-camels-biology/59721
● Protylopus
▼ Image Source: palaeopedia.tumblr.com/protylopus
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The protylopus, the earliest possible progenitor of the camel, evolved in North America. Some researchers claim it was the size of a rabbit. Wikipedia indicates that it was the small, with a height of 2.6 feet and weighing about 57 pounds. Protylopus's front legs were shorter than the hind legs, and ended in four-toed feet. 

Three distinct Camelidae family lines began with the Protylopus: the Stenomylus, Paratylopus, and the Camelops, the main evolutionary line.

● Stenomylus                                                ​             Image Source: deviantart.com/Stenomylus  ▼

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The Stenonmylus lived around 20 million years ago. The species died out 3 million years ago. Stenomylus was a miniature ancestor extremely small compared to other ancient and modern camels, being about the size of a Roe deer.

● Paratylopus

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This branch of the camel family lived from about 34 to 16 million years ago. This species existed for approximately 18 million years. Fossils have been found in western Wyoming, and from eastern Nebraska to northeastern Colorado, and southwestern South Dakota.
◄ Image Source: prehistoria.fandom.com/es/wi

● Camelops
This species is the main line of evolution of the camel, although some divergence in the line appears on the chart about 23 to 5 million years ago. Fossils remains show it ranges from Alaska to Mexico from the middle Pliocene to the end of the Pleistocene era.

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• In the lower Miocene, 23 to 5 million years ago, a divergence occurred resulting in the Auchenia  branch of the family which continued to evolve until 3 million years ago when that genus migrated from North America to South America.

​​◄ Genus Auchenia
​ 
Image  Source:  https://www.philographikon.com/goldfuss.html

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​• At about the same time, the main line Procamelus appeared. It had long legs designed for speed, and was about 1.3 metres (4.3 ft) in height at the shoulder, slightly smaller than a modern llama. Unlike modern camelids, it had a pair of small incisor teeth in the upper jaw. The remaining teeth were large and adapted for eating tough vegetation.
 Genus Procamelus
▲ image source: parody.fandom.com//Procamelus  

The shape of the toes suggests that it possessed foot pads, like modern camels, but unlike earlier forms of camelid, which generally had hooves. This would have helped it walk over relatively soft ground.


 A wide variety of animals in this family branch coexisted during the Pliocene including the very large Titanotylopus. This species possessed long and massive limbs, a comparatively small braincase, and a convex slope between the eyes. Its average height was 11.5 feet at the shoulder.                                                         

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​The image shows the comparison of a man’s height to the Titanotylopus, the Camelops Hesternos (middle) at 7 feet at the shoulder, and the dromedary (front) at 6 feet.

Other species had long necks like giraffe. Many of these species existed at the same time.
  Titanotylopus (back), Camelops Hesternos, and dromedary (front).
                                           Image source: reddit.com/titanotylopus 
►

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​There is some disagreement with the names on the chart, since most other references identify Camelops Hesternos as the surviving species in the line. The chart indicates Camelus.
​
◄   Various species of the prehistoric camel
       Image Source:
​       pinterest.com/pin/588212401301191643/

MIGRATION
Thus, the origin of the camel family (Camelidae) is established as being North America based on finding fossils there.

During the Pleistocene era, around 3 million years ago, the first branch of this family, the Llama Auchenia, migrated to the south over the then-recently-created Isthmus of Panama. They spread out in South America where they evolved into the Llama, Alpaca, Guanaco and Vicuña. This is termed the Great American Interchange.

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Migration Of Camels from North AmericaI
Image Source: bing.com/images/search
The camelops continued to exist in North America into the late Pleistocene, commonly referred to as The Ice Age, which lasted from about 2.5 million years ago to almost 12,000 years ago.
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During the Ice Age, massive glaciers covered enough of the earth to lock up much of the world’s water. This caused sea levels to drop by as much as 300 feet. The Bering Strait, which separates North America from Russia was dry land (called Beringia). This happened twice: 75,000 to 45,000 years ago and then again 25,000 to 14,000 years ago. During these periods many species of animals migrated across Beringia into Russia, including Camelos. 
Camelops Hesternus ▲
Image Source: prehistoric-fauna.com/Camelops-hesternus


While there is no specific evidence for the reason so many animals migrated across Beringia, the logical assumption is that the increasing cold and lack of food forced many animals to seek a more hospitable living environment.

As far as the camel is concerned, the last surviving species in North America was Camelops Hesternus, “which vanished along with horses, short-faced bears, mammoths, mastodons, ground sloths, sabertooth cats and many animals, coinciding with the migration of humans from Asia at the end of the Pleistocene, around 15,000 to 11,000 years ago.” https://en.wikipedia.org/wiki/Camelops

​
Frankly, I’d put my money on the ice age as the reason for extinction, not humans.
Camelops Hesternus, as the camel foresighted enough to make his escape over the Bering Strait, traveled through Asia and India, and down into Africa, evolving into today’s Bactrian camel and Arabian dromedary.

Now, in the unlikely event that anyone asks you where camels originated, instead of laughing or saying something like “What’s the matter with you?”, you can astound the person with the saga of the Camelos. Or not.

JUST SAYIN

■
Sources:
https://en.wikipedia.org/wiki/Camelops#:~:text=Both%20the%20camel%20and%20horse%20families%20originated%20in,between%20Paracamelus%20and%20Camelops%20occurred%20about%2011%E2%80%9310%20Mya.
https://www.historicmysteries.com/camelops-north-american-camel/
https://www.quora.com/Where-did-camels-originate
https://equatorialminnesota.blogspot.com/2015/12/north-american-camels-not-run-of-mill.html
https://www.biologydiscussion.com/animals-2/origin-of-camels-biology/59721
https://www.history.com/news/giant-ancient-camel-roamed-the-arctic
https://en.wikipedia.org/wiki/Camelops
https://en.wikipedia.org/wiki/Paratylopus
https://www.livescience.com/27503-camels.html
http://www.fjcollazo.com/documents/CamelChron10.pdf
https://quatr.us/central-asia/where-do-camels-come-from.htm
https://www.thoughtco.com/the-pliocene-epoch-1091372
https://www.ibtimes.com/4-extinct-animals-roamed-america-giant-sloths-scimitar-cats-2558799
https://www.livescience.com/27503-camels.html
http://www.fjcollazo.com/documents/CamelChron10.pdf
https://quatr.us/central-asia/where-do-camels-come-from.htm
https://www.biologydiscussion.com/animals-2/origin-of-camels-biology/59721
http://www.india2australia.com/history-camels-australia/#:~:text=The%20history%20of%20Camels%20in%20Australia.%20Mostly%20camels,Malte%20Brun%20was%20a%20Danish-French%20geographer%20and%20journalist.
https://www.nationalgeographic.com/science/phenomena/2013/03/05/the-giant-camels-of-the-prehistoric-high-arctic/
https://valentint.blog.bg/zabavlenie/2015/12/18/largest-prehistoric-animals-vol-1-mammals-ch-11-camels-litop.1415919
https://www.worldatlas.com/articles/the-seven-extant-species-of-the-camelidae-family.html#:~:text=%20The%20Seven%20Extant%20Species%20Of%20The%20Camelidae,native%20to%20the%20Andes%20mountains%20and...%20More%20
Images only
 https://commons.wikimedia.org/w/index.php?curid=2831408
https://www.pinterest.ca/pin/361132463861399333/
http://apps.dmns.org/whosepoo/Stage2.html
https://www.reddit.com/r/Naturewasmetal/comments/b7pvo4/titanotylopus_was_heavy_metal/
https://prehistoric-fauna.com/Camelops-hesternus
https://commons.wikimedia.org/wiki/File:The_age_of_mammals_in_Europe,_Asia_and_North_America_(1910)_(17322665784).jpg
https://palaeopedia.tumblr.com/post/151672450988/the-little-camel-protylopus-1898-phylum
https://dinopedia.fandom.com/wiki/Protylopus
https://www.geologyin.com/2016/12/10-interesting-facts-about-geological.html
http://www.dbriers.com/tutorials/2012/12/living-organisms-viewed-at-different-structures-of-organization/biological_classification/
https://www.researchgate.net/figure/Classification-of-the-Camelidae-family_fig1_276102908
https://www.frontiersin.org/articles/10.3389/fgene.2019.00017/full
https://www.pinterest.com/pin/588212401301191643/

https://www.bing.com/images/search?view=detailV2&ccid=3qwEFxhh&id=D8C42EACEA158DBBA56C2A3A003C60A1B1025D1D&thid=OIP.3qwEFxhhouZtOf_h2a4y7AHaEg&mediaurl=https%3A%2F%2Fqph.fs.quoracdn.net%2Fmain-qimg-fe1378aec191045b15f9b0a77e761fbc-c&cdnurl=https%3A%2F%2Fth


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    Author R. Ann Siracusa

    Novelist, retired architect and urban planner, world traveler, quilter, owl collector, devoted wife-mother-grandmother, great-grandmother, and, according to some, wild-assed liberal.

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