biology

White-bellied woolly mouse opossum

White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum rather than just read about it. In short: The white-bellied woolly mouse opossum (Marmosa constantiae) is a small pouchless marsupial of the family Didelphidae. It was formerly assigned to the genus Micoureus, which was made a subgenus of Marmosa in 2009.

Key takeaways

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

Reference excerpt

The white-bellied woolly mouse opossum (Marmosa constantiae) is a small pouchless marsupial of the family Didelphidae. It was formerly assigned to the genus Micoureus, which was made a subgenus of Marmosa in 2009. The specific epithet was given in honour of Constance Sladen (née Anderson), wife of the naturalist Percy Sladen. She funded the 1902 expedition which collected the type specimen.

Description This is one of the larger mouse opossums, with a head=body length of 11 to 18 cm (4.3 to 7.1 in), a tail 15 to 23 cm (5.9 to 9.1 in) in length, and weighing from 35 to 144 g (1.2 to 5.1 oz). The fur is thick and woolly, and is grey over most of the body, fading to buffy-yellow on the head and underparts. There are clear, but narrow, rings of black fur around the eyes. The tail is furred only at the base, and is near black for most of its length, but changes suddenly to pale pink along the last third or so. The feet are broad, with stout claws and ridges on the underside of the toes that aid in climbing trees. Females do not have a pouch, but have fifteen teats arranged in a circle - more than in any of this species' closest relatives.

Distribution and habitat The opossum is found across northern Bolivia, in the Brazilian states of Mato Grosso and Mato Grosso do Sul, and in northern Argentina as far south as Tucumán Province. It has also recently been reported from Paraguay. Across this region, it inhabits moist tropical forests, often near the boundary with drier habitats, and has been found from near sea level to montane forests as high as 1,000 m (3,300 ft) elevation.

Biology and behaviour The opossum is arboreal, solitary, and nocturnal, spending most of its time in the forest understory. It is omnivorous, feeding on insects (especially bugs) and vegetable matter. Little is known of their reproductive biology, but they appear to breed throughout the year, and mothers have been captured with up to seven young attached to their teats.

References

Illustrations

Worked examples

Example 1 — a first encounter with White-bellied woolly mouse opossum

Start with the simplest possible case. Write down what White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum

In research: White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum 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: White-bellied woolly mouse opossum is common in secondary-school and first-year university syllabi. It links to neighbouring topics IUCN Red List least concern species, Mammals described in 1904, Mammals of Paraguay, so understanding it makes those chapters shorter.
In everyday life: Look for White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum in 20 minutes

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

Frequently asked questions

What is White-bellied woolly mouse opossum in simple terms?

Why does White-bellied woolly mouse opossum 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 White-bellied woolly mouse opossum?

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 White-bellied woolly mouse opossum.