biology

Ptilocercus

Ptilocercus 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 Ptilocercus rather than just read about it. In short: Ptilocercus is a genus of treeshrew and the sole member of the family Ptilocercidae. Taxonomy Today the genus (and family) is represented by a single species, the pen-tailed treeshrew (Ptilocercus lowii).

Key takeaways

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

Reference excerpt

Ptilocercus is a genus of treeshrew and the sole member of the family Ptilocercidae.

Taxonomy Today the genus (and family) is represented by a single species, the pen-tailed treeshrew (Ptilocercus lowii). However, this genus is very ancient and considered the most primitive of all the treeshrews. In 2016 a new species was described from China dated to the Early Oligocene about 34 million years ago. This species, Ptilocercus kylin, is so strikingly similar to the living species that it can be considered a sister taxa. This suggests that the Ptilocercidae have evolved little change over millions of years.

References

Illustrations

Worked examples

Example 1 — a first encounter with Ptilocercus

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

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

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

Frequently asked questions

What is Ptilocercus in simple terms?

Ptilocercus is a genus of treeshrew and the sole member of the family Ptilocercidae. Taxonomy Today the genus (and family) is represented by a single species, the pen-tailed treeshrew (Ptilocercus lowii).

Why does Ptilocercus 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 Ptilocercus?

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 Ptilocercus.