science

Richard G. Zweifel

Richard G. Zweifel is a science 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 Richard G. Zweifel rather than just read about it. In short: Richard George Zweifel (November 5, 1926, in Los Angeles – November 25, 2019) was an American herpetologist, who classified several species in the American Southwest and in Australia, including the rattling frog. Zweifel contributed immensely to the documentation of the nowadays Aspidoscelis costatus species.

Key takeaways

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

Reference excerpt

Richard George Zweifel (November 5, 1926, in Los Angeles – November 25, 2019) was an American herpetologist, who classified several species in the American Southwest and in Australia, including the rattling frog. Zweifel contributed immensely to the documentation of the nowadays Aspidoscelis costatus species. Out of the eight costata subspecies, Dr. Zweifel reported and named five of them. Zweifel worked at the American Museum of Natural History from 1954 to 1989, and was Herpetology Department Chairman from 1968 to 1980. Zweifel was a resident of Northvale, New Jersey, and in Arizona.

Bibliography Zweifel RG (1955). "Ecology, distribution and systematics of frogs of the Rana boylei group". Univ. California Pub. Zool. 54 (4): 207–292. Zweifel RG (1985). Australian Frogs of the Family Microhylidae. ISBN 99953-48-60-8. Zweifel RG (1998). Encyclopedia of Reptiles & Amphibians. (with Harold George Cogger and David Kirshner) ISBN 0-12-178560-2. Zweifel RG (2001). Encyclopedia of Animals: Mammals, Birds, Reptiles, Amphibians. (with Harold George Cogger, Joseph Forshaw, Edwin Gould, and George McKay) ISBN 1-875137-99-8.

Legacy

In 1984, he was honored by the naming of "Zweifel's frog" (Lithobates zweifeli ), found in Mexico, and in 1998 a microhylid frog Cophixalus zweifeli was named after him. Several other amphibians have been named for him: Nyctimystes zweifeli, Xenorhina zweifeli, and Oscaecilia zweifeli, as is the proposed (sub)genus Zweifelia.

References

Worked examples

Example 1 — a first encounter with Richard G. Zweifel

Start with the simplest possible case. Write down what Richard G. Zweifel claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Richard G. Zweifel 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 Richard G. Zweifel 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 Richard G. Zweifel

In research: Richard G. Zweifel appears in science 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 Richard G. Zweifel 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: Richard G. Zweifel is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1926 births, 2019 deaths, 20th-century American zoologists, so understanding it makes those chapters shorter.
In everyday life: Look for Richard G. Zweifel 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 Richard G. Zweifel in 20 minutes

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

Frequently asked questions

What is Richard G. Zweifel in simple terms?

Why does Richard G. Zweifel matter?

Because it connects several science 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 Richard G. Zweifel?

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 Richard G. Zweifel.