biology

Hynobius

Hynobius 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 Hynobius rather than just read about it. In short: Hynobius is a genus of salamander (Asian salamanders) in the family Hynobiidae, occurring in Japan, Korea, China, Taiwan and Far East Russia. It is a large genus containing over 40 species.

Key takeaways

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

Reference excerpt

Hynobius is a genus of salamander (Asian salamanders) in the family Hynobiidae, occurring in Japan, Korea, China, Taiwan and Far East Russia. It is a large genus containing over 40 species. The Japanese archipelago is the primary diversity hotspot for the genus, with nearly 67.3% of Hynobius species being endemic to it.

Species

Species included (as of June 2025):

Internal Phylogeny

Internal phylogeny tree of genus Hynobius.

References

External links AmphibiaWeb: Information on amphibian biology and conservation. [web application]. 2008. Berkeley, California: Hynobius. AmphibiaWeb, available at https://web.archive.org/web/20040827082534/http://www.amphibiaweb.org/ (Accessed: July 28, 2008).

Illustrations

Worked examples

Example 1 — a first encounter with Hynobius

Start with the simplest possible case. Write down what Hynobius 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 Hynobius 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 Hynobius 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 Hynobius

In research: Hynobius 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 Hynobius 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: Hynobius is common in secondary-school and first-year university syllabi. It links to neighbouring topics Amphibian genera, Hynobius, Salamander stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Hynobius 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 Hynobius in 20 minutes

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

Frequently asked questions

What is Hynobius in simple terms?

Hynobius is a genus of salamander (Asian salamanders) in the family Hynobiidae, occurring in Japan, Korea, China, Taiwan and Far East Russia. It is a large genus containing over 40 species.

Why does Hynobius 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 Hynobius?

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 Hynobius.