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Learned pig

Learned pig 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 Learned pig rather than just read about it. In short: The learned pig was a pig taught to respond to commands in such a way that it appeared to be able to answer questions by picking up cards in its mouth. By choosing cards it answered arithmetical problems and spelled out words.

Learned pig — main illustration
Learned pig — illustration

Key takeaways

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

Reference excerpt

The learned pig was a pig taught to respond to commands in such a way that it appeared to be able to answer questions by picking up cards in its mouth. By choosing cards it answered arithmetical problems and spelled out words. The "learned pig" caused a sensation in London during the 1780s. It became a common object of satire, illustrated caricature and a subject in popular literature.

The original "learned pig" was followed by other trained pigs, which subsequently became a feature of fairs and other public attractions in Europe and America during the 19th century. In the words of G.E. Bentley, They served as subjects for cartoons by Rowlandson and moral essays in children's books and savage doggerel by Blake, and they illustrated the manners of the English in works by Joseph Strutt and Robert Southey and Thomas Hood. These freaks of learning clearly exercised a fascination among the literary geniuses of the age as they did among the swinish multitude.

The original pig The original "learned pig" was trained by a Scotsman, Samuel Bisset, who ran a travelling novelty show. The idea of an "intellectual" animal was not new. A similar attraction known as "Marocco the thinking horse" (c.1586–c.1606) had been exhibited over a century earlier; there were also contemporary examples of the "horse of knowledge", exhibited for example at Astley's Amphitheatre. But performing horses were nothing unusual. No performing pigs are known to have been trained before. The pig was shown with great success in Dublin. After Bisset's death the pig was taken over by a Mr Nicholson, who toured it in Britain. It was exhibited in Nottingham in 1784, coming to London in the following year." According to publicity at the time,

This entertaining and sagacious animal casts accounts by means of Typographical cards, in the same manner as a Printer composes, and by the same method sets down any capital or Surname, reckons the number of People present, tells by evoking on a Gentleman's Watch in company what is the Hour and Minutes; he likewise tells any Lady's Thoughts in company, and distinguishes all sorts of colours. The show was a great success, and the pig later toured the provincial towns, returning to London later in the year and then moving on to the continent of Europe. After a career of four years a report stated that the pig died in 1788. However, a later report claimed that it had just returned from France following the revolution of 1789, and was ready to "discourse on the Feudal System, the Rights of Kings and the Destruction of the Bastille". The phenomenon caused much comment. James Boswell recalls conversations with Samuel Johnson in which he joked about the pig's scholarship. Johnson never saw the pig. He died just before it came to London, but he commented on a report of its show in Nottingham. He suggested that "the pigs are a race unjustly calumniated. Pig has, it seems, not been wanting to man, but man to pig. We do not allow time for his education, we kill him at a year old." Another man present joked that Alexander Pope would not have used the pig as a symbol of "the lowest degree of grovelling instinct" in his works if this creature had been known to him, but added that the pig had probably been subject to some form of torture to force it to respond to commands. Johnson replied that at least it had escaped slaughter: "the pig has no cause to complain; he would have been killed the first year if he had not been educated, and protracted existence is a good recompence for very considerable degrees of torture." The discussion about how the pig had been trained also led to disputes about the cognitive abilities of pigs; whether the animal actually recognised letters or even words, or whether it was simply responding to direct prompting. The phenomenon was also discussed in instructional literature aimed at children, to describe the essential difference between human and animal capacities and to warn against cruelty to animals, on the assumption that the pigs were badly beaten by their trainers to force them to behave. Mrs Trimmer in her children's book The Robin Redbreasts (1788), "designed to teach children the proper treatment of animals", mentions the pig in chapter entitled "The Cruel Boy": aiming to teach that animals are not "mere machines, actuated by the unerring hand of Providence", it says that the sight of the Learned Pig, "which has lately been shown in London, has deranged these ideas, and I know not what think".

Later pigs

In 1798 a learned pig appeared in the United States. William Frederick Pinchbeck displayed a "Pig of Knowledge" in New England. He claimed to have toured all the major towns of the Union and introduced the pig to President John Adams, to "universal applause". Pinchbeck later explained his methods of training the pig in a pamphlet. He denied that any form of torture was involved, insisting that it was better to "coax" the pig to follow instructions. The animal would soon learn to respond to the slightest hints of movement from the trainer. He stated that credulous spectators accused him of using witchcraft, one stating that "his performances were the effects of the Black Art; that the Pig ought to be burnt, and the Man banished, as he had no doubt but...[his trainer] familiarly corresponded with the devil." Others suggested that the pig was evidence of reincarnation: "the spirit of the grunting philosopher might once have animated a man." In the early 19th century, Nicholas Hoare, an illusionist, exhibited "Toby the sapient pig" in London. Toby could "discover a person's thoughts", a skill "never heard of before to be exhibited by an animal of the swine race". Around 1817 Toby also published an autobiography, The life and adventures of Toby, the sapient pig: with his opinions on men and manners. Written by himself. A pig owned by Pinchbeck was shown in London between 1818 and 1823. According to his publicity, the pig had acquired his wisdom from "Souchanguyee, the Chinese Philosopher." He answered questions by "pointing to cards, letters, and persons in the audience." "Toby" became a standard name for a learned pig. The writer Harrison Weir depicts a learned pig called Toby, which he saw a "year ago at Camberwell Fair" for a penny. According to Harrison, the pig carried a correctly numbered card to a person who had called out a number; it spelled "vittels," and then it left to have some, "with a joyful grunt, and the show was over."

Caricature

… excerpt ends here. Continue reading the full article.

Illustrations

Learned pig illustration
Learned pig: Poster for Toby the Sapient Pig
Poster for Toby the Sapient Pig
Learned pig: The Downfall of Taste and Genius (1784). The classical muses flee while the Learned Pig leads an assault on the arts, as Shakespeare's and Pope's works are cast aside.
The Downfall of Taste and Genius (1784). The classical muses flee while the Learned Pig leads an assault on the arts, as Shakespeare's and Pope's works are cast aside.
Learned pig: The Story of the Learned Pig by an Officer of the Royal Navy, 1786
The Story of the Learned Pig by an Officer of the Royal Navy, 1786
Learned pig: Toby learning Latin grammar, a caricature by John Leech, 1840s
Toby learning Latin grammar, a caricature by John Leech, 1840s

Worked examples

Example 1 — a first encounter with Learned pig

Start with the simplest possible case. Write down what Learned pig 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 Learned pig 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 Learned pig 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 Learned pig

In research
Learned pig 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 Learned pig 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
Learned pig is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1780s in England, Animal intelligence, Caricature, so understanding it makes those chapters shorter.
In everyday life
Look for Learned pig 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 Learned pig in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Learned pig 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 Learned pig out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Learned pig in simple terms?

The learned pig was a pig taught to respond to commands in such a way that it appeared to be able to answer questions by picking up cards in its mouth. By choosing cards it answered arithmetical problems and spelled out words.

Why does Learned pig 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 Learned pig?

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 Learned pig.

Tags

  • 1780s in England
  • Animal intelligence
  • Caricature
  • Pigs in popular culture
  • Satirical publications

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