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Jackal

Jackal is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Jackal rather than just read about it. In short: Jackals are canids native to Africa and Eurasia. While the word jackal has historically been used for many canines of the subtribe canina, in modern use it most commonly refers to three species: the closely related black-backed jackal (Lupulella mesomelas) and side-striped jackal (Lupulella adusta) of Central and Southern Africa, and the golden jackal (Canis aureus) of south-central Europe and Asia.

Jackal — main illustration
Jackal — illustration

Key takeaways

  • Jackal belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Jackal to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Jackal from memory before moving on to harder problems.

Reference excerpt

Jackals are canids native to Africa and Eurasia. While the word jackal has historically been used for many canines of the subtribe canina, in modern use it most commonly refers to three species: the closely related black-backed jackal (Lupulella mesomelas) and side-striped jackal (Lupulella adusta) of Central and Southern Africa, and the golden jackal (Canis aureus) of south-central Europe and Asia. The African golden wolf (Canis lupaster) was also formerly considered a jackal. While they do not form a monophyletic clade, all jackals are opportunistic omnivores, predators of small to medium-sized animals and proficient scavengers. Their long legs and curved canine teeth are adapted for hunting small mammals, birds, and reptiles, and their large feet and fused leg bones give them a physique well-suited for long-distance running, capable of maintaining speeds of 16 km/h (10 mph) for extended periods of time. Jackals are crepuscular, most active at dawn and dusk. Their most common social unit is a monogamous pair, which defends its territory from other pairs by vigorously chasing intruders and marking landmarks around the territory with their urine and feces. The territory may be large enough to hold some young adults, which stay with their parents until they establish their own territories. Jackals may occasionally assemble in small packs, for example, to scavenge a carcass, but they normally hunt either alone or in pairs.

Etymology The English word jackal dates back to 1600 and derives from French chacal, itself from Ottoman Turkish چقال (çakal), itself from Persian شغال (shaghāl), cognate with Ancient Sanskrit शृगाल (śṛgāla-), meaning 'the howler'.

Taxonomy and relationships

Similarities between jackals and coyotes led Lorenz Oken, in the third volume of his Lehrbuch der Naturgeschichte (1815), to place these species into a new separate genus, Thos, named after the classical Greek word θώς "jackal", but his theory had little immediate impact on taxonomy at the time. Angel Cabrera, in his 1932 monograph on the mammals of Morocco, questioned whether or not the presence of a cingulum on the upper molars of the jackals and its corresponding absence in the rest of Canis could justify a subdivision of that genus. In practice, Cabrera chose the undivided-genus alternative and referred to the jackals as Canis instead of Thos. Oken's Thos theory was revived in 1914 by Edmund Heller, who embraced the separate genus theory. Heller's names and the designations he gave to various jackal species and subspecies live on in current taxonomy, although the genus has been changed from Thos to Canis. The wolf-like canids are a group of large carnivores that are genetically closely related. They all have 78 chromosomes. The group includes genus Canis, Cuon, and Lycaon. The members are the dog (C. lupus familiaris), gray wolf (C. lupus), coyote (C. latrans), golden jackal (C. aureus), Ethiopian wolf (C. simensis), black-backed jackal (C. mesomelas), side-striped jackal (C. adustus), dhole (Cuon alpinus), and African wild dog (Lycaon pictus). The latest recognized member is the African wolf (C. lupaster), which was once thought to be an African branch of the golden jackal. As they possess 78 chromosomes, all members of the genus Canis are karyologically indistinguishable from each other, and from the dhole and the African hunting dog. The two African jackals are shown to be the most basal members of this clade, indicating the clade's origin from Africa. Canis arnensis arrived in Mediterranean Europe 1.9 million years ago and is probably the ancestor of modern jackals. The paraphyletic nature of Canis with respect to Lycaon and Cuon has led to suggestions that the two African jackals should be assigned to different genera, Schaeffia for the side-striped jackal and Lupulella for the black-backed jackal or Lupulella for both. The intermediate size and shape of the Ethiopian wolf has at times led it to be regarded as a jackal, thus it has also been called the "red jackal" or the "Simien jackal".

Species

Folklore and literature Like foxes and coyotes, jackals are often depicted as clever sorcerers in the myths and legends of their regions. They are mentioned roughly 14 times in the Bible. It is frequently used as a literary device to illustrate desolation, loneliness, and abandonment, with reference to its habit of living in the ruins of former cities and other areas abandoned by humans. It is called "wild dog" in several translations of the Bible. In the King James Bible, Isaiah 13:21 refers to 'doleful creatures', which some commentators suggest are either jackals or hyenas. Additionally, the biblical character Job is known to have suffered tremendous loss and death, and in Job 30:29 he laments his situation by associating himself to be "a brother of jackals." In the Indian Panchatantra stories, the jackal is mentioned as wily and wise. In Bengali tantrik tradition, they represent the goddess Kali. It is said she appears as jackals when meat is offered to her. The canid which Anubis was modeled upon has frequently been stated to have been the golden jackal, though the African variant of this animal present in Egypt was reclassified in 2015 as a separate species now known as the African wolf, which was found to be more closely related to wolves and coyotes than to the jackal. Some authors have opined that Anubis is more probably modeled after a fox or Ethiopian wolf. Nevertheless, ancient Greek texts about Anubis consistently refer to the deity as having the head of a dog rather than that of any wild canid, and there is still uncertainty as to what species represents Anubis. The Serer religion and creation myth posits jackals were among the first animals created by Roog, the supreme deity of the Serer people. In Nonviolent Communication (NVC) the Jackal is used to represent one's inner judgmental voice. The Jackal represents inner thoughts and stories about others and ourselves. Marshall Rosenberg, the father of NVC, said that he came up with the metaphor of the Jackal when traveling in Europe and one of his workshop participants were complaining about her husband when Marshall asked "are you still dealing with that old jackal?". Since then he routinely used the Jackal to present the counterpart to the nonviolent giraffe in NVC.

References

… excerpt ends here. Continue reading the full article.

Illustrations

Jackal illustration
Jackal illustration
Jackal illustration
Jackal illustration
Jackal illustration

Worked examples

Example 1 — a first encounter with Jackal

Start with the simplest possible case. Write down what Jackal claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Jackal before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Jackal ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Jackal

In research
Jackal appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Jackal in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Jackal is common in secondary-school and first-year university syllabi. It links to neighbouring topics Animal taxa named by Carl Linnaeus, Jackals, Mammal common names, so understanding it makes those chapters shorter.
In everyday life
Look for Jackal outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Jackal in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Jackal means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Jackal out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jackal in simple terms?

Jackals are canids native to Africa and Eurasia. While the word jackal has historically been used for many canines of the subtribe canina, in modern use it most commonly refers to three species: the closely related black-backed jackal (Lupulella mesomelas) and side-striped jackal (Lupulella adusta)…

Why does Jackal matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Jackal?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Jackal.

Tags

  • Animal taxa named by Carl Linnaeus
  • Jackals
  • Mammal common names
  • Mammals described in 1758
  • Mammals of Africa
  • Necrophages

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