biology

Western tree hyrax

Western tree hyrax 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 Western tree hyrax rather than just read about it. In short: The western tree hyrax (Dendrohyrax dorsalis), also called the western tree dassie or Beecroft's tree hyrax, is a species of tree hyrax within the family Procaviidae. It can be distinguished from other hyraxes by short coarse fur, presence of white patch of fur beneath the chin, lack of hair on the rostrum, and lower crowns of the cheek teeth compared to other members of the same genus.

Key takeaways

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

Reference excerpt

The western tree hyrax (Dendrohyrax dorsalis), also called the western tree dassie or Beecroft's tree hyrax, is a species of tree hyrax within the family Procaviidae. It can be distinguished from other hyraxes by short coarse fur, presence of white patch of fur beneath the chin, lack of hair on the rostrum, and lower crowns of the cheek teeth compared to other members of the same genus.

Description The western tree hyrax is similar in appearance to a large guinea pig. It has a head-and-body length of between 440 and 570 mm (17.3 and 22.4 in) and a stumpy tail. The pelage is thick and coarse, with a few yellowish hairs scattered among the dark brown and blackish ones; pale individuals with cream-coloured coats have also been observed. Scattered long sensory hairs similar to whiskers are present in the coat. The snout is free from fur, the ears are small and rounded and sometimes tipped with white, and the chin bears a white spot. There is a dorsal scent gland up to 70 mm (2.8 in) long in the centre of the back, surrounded by a yellowish patch of fur.

Behavior Western tree hyraxes tend to be solitary, and only occasionally are found in groups of two or three. They are nocturnal and generally feed at night. It has been noted that this species is an especially adept climber. In captivity they have been observed to climb up the edge of an open door with ease, as well as being able to quickly scale smooth tree trunks. They are aided in climbing with their black, pliant footpads with numerous ridges. Captive animals were observed using their teeth to help hold on to wires and vines while climbing. The gestation period is about eight months with a litter size one or two young.

Ecology Common predators of the western tree hyrax are hawks, leopards, servals, eagles, pythons, and African golden cats, in addition to occasionally being hunted by humans for food. In Bossou, Guinea, one notable ecological association with chimpanzees occurs. A chimpanzee at Bossou was observed capturing a western tree hyrax, carrying it to her nest, and sleeping with and grooming it. This suggests that chimpanzees in Bossou may not regard hyraxes as a prey animal.

Range and habitat

The western tree hyrax is found in West and Central Africa: Benin, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Nigeria, Rwanda, Senegal, Sierra Leone, South Sudan, Togo, Uganda, and possibly Niger. Its natural habitats are subtropical or tropical moist lowland forests, moist savanna, and rocky areas.

References

Illustrations

Worked examples

Example 1 — a first encounter with Western tree hyrax

Start with the simplest possible case. Write down what Western tree hyrax 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 Western tree hyrax 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 Western tree hyrax 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 Western tree hyrax

In research: Western tree hyrax 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 Western tree hyrax 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: Western tree hyrax is common in secondary-school and first-year university syllabi. It links to neighbouring topics Hyraxes, IUCN Red List least concern species, Mammals of Africa, so understanding it makes those chapters shorter.
In everyday life: Look for Western tree hyrax 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 Western tree hyrax in 20 minutes

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

Frequently asked questions

What is Western tree hyrax in simple terms?

Why does Western tree hyrax 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 Western tree hyrax?

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 Western tree hyrax.