biology

Hippopotamus madagascariensis

Hippopotamus madagascariensis is a biology 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 Hippopotamus madagascariensis rather than just read about it. In short: Hippopotamus madagascariensis, the Madagascar or Madagascan dwarf hippopotamus, is an extinct species of hippopotamus, endemic to the island of Madagascar. Known only from bones, it is believed to have gone extinct sometime after 1500.

Key takeaways

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

Reference excerpt

Hippopotamus madagascariensis, the Madagascar or Madagascan dwarf hippopotamus, is an extinct species of hippopotamus, endemic to the island of Madagascar. Known only from bones, it is believed to have gone extinct sometime after 1500. It was one of three hippopotamus species, the Malagasy hippopotamuses, which were native to Madagascar and are all extinct.

Taxonomy Malagasy hippopotamuses were first discovered in the mid-19th century by Alfred Grandidier, who unearthed nearly 50 individual hippos from a dried-up swamp at Ambolisaka near Lake Ihotry, a few miles from the Mozambique Channel. In 1989, Scandinavian palaeontologist Solweig Stuenes described H. madagascariensis and H. lemerlei from these bones.

Description Like the modern pygmy hippopotamus (Choeropsis liberiensis), the Malagasy pygmy hippo had eyes on the side of its head rather than high orbits and teeth of the common hippopotamus. The Malagasy pygmy hippo was similarly less aquatic, with many of its fossils found in the forested highlands of Madagascar. These similarities may be due to convergent evolution. Fossils of both the Malagasy pygmy hippopotamus and H. lemerlei show a cursorial adaptation, distinct from the hippos on the African continent, and they would have been much better runners.

Extinction Although there have been no remains dating to within the last thousand years, the hippopotamus has been surprisingly common in Malagasy oral legends. In different regions of Madagascar, stories were recorded of the mangarsahoc, the tsy-aomby-aomby, the omby-rano, and the laloumena, all animals that resembled hippopotamuses. The strength of these oral traditions led the International Union for Conservation of Nature (IUCN) to classify H. madagascarensis as recently extinct (going extinct some time after the year 1500). At least seven hippopotamus bones show unequivocal signs of butchery, suggesting that they survived until humans arrived on Madagascar. Humans and hippos may have coexisted for about 2,000 years. It is possible overhunting by humans led to their extinction.

See also Hippopotamus lemerlei Hippopotamus laloumena

References

Illustrations

Worked examples

Example 1 — a first encounter with Hippopotamus madagascariensis

Start with the simplest possible case. Write down what Hippopotamus madagascariensis claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Hippopotamus madagascariensis 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 Hippopotamus madagascariensis 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 Hippopotamus madagascariensis

In research: Hippopotamus madagascariensis appears in biology 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 Hippopotamus madagascariensis 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: Hippopotamus madagascariensis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Extinct animals of Madagascar, Extinct hippopotamuses, Holocene extinctions, so understanding it makes those chapters shorter.
In everyday life: Look for Hippopotamus madagascariensis 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 Hippopotamus madagascariensis in 20 minutes

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

Frequently asked questions

What is Hippopotamus madagascariensis in simple terms?

Why does Hippopotamus madagascariensis matter?

Because it connects several biology 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 Hippopotamus madagascariensis?

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 Hippopotamus madagascariensis.