biology

Ptychozoon

Ptychozoon 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 Ptychozoon rather than just read about it. In short: Ptychozoon was a genus of arboreal geckos, endemic to Southeast Asia, known commonly as flying geckos, gliding geckos, or parachute geckos. They all are now placed in the genus Gekko in the family Gekkonidae.

Key takeaways

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

Reference excerpt

Ptychozoon was a genus of arboreal geckos, endemic to Southeast Asia, known commonly as flying geckos, gliding geckos, or parachute geckos. They all are now placed in the genus Gekko in the family Gekkonidae. The biogeographic history of the genus Ptychozoon was deeply nested within that of the genus Gekko, the center of diversity of which is within Southeast Asia. Since dispersing into Southeast Asian rainforests, Pytochozoon, like other forest-dwelling vertebrates, adapted to facilitate gliding. All species in the genus Ptychozoon are characterized by cryptic coloration and elaborate webs surrounding the neck, limbs, trunk, and tail. These membranes help to conceal the gecko against trees. When the gecko leaps into the air, the flaps are used to generate lift and allow the gecko to control its fall. It can glide up to 200 feet (61 meters). Also it does a swoop at the end of its glide to land softly. A similar adaptation is found in geckos of the genus Cosymbotus. There were thirteen described species in the genus Ptychozoon.

Species The following species were recognized as being valid.

Ptychozoon bannaense Y. Wang, J. Wang & Liu, 2016 – Banna parachute gecko Ptychozoon cicakterbang Grismer, Wood, Grismer, Quah, Thy, Phimmachak, Sivongxay, Seateun, Stuart, Siler, Mulcahy, Anamza, & Brown, 2019 – Malaysia parachute gecko Ptychozoon horsfieldii (Gray, 1827) – Horsfield's flying gecko, Horsfield's parachute gecko Ptychozoon intermedium Taylor, 1915 – intermediate flying gecko, Philippine parachute gecko Ptychozoon kabkaebin Grismer, Wood, Grismer, Quah, Thy, Phimmachak, Sivongxay, Seateun, Stuart, Siler, Mulcahy, Anamza, & Brown, 2019 – Lao parachute gecko Ptychozoon kaengkrachanense Sumontha, Pauwels, Kunya, Limlikhitaksorn, Ruksue, Taokratok, Ansermet & Chanhome, 2012 – Kaeng Krachan parachute gecko Ptychozoon kuhli Stejneger, 1902 – Kuhl's flying gecko, Kuhl's parachute gecko Ptychozoon lionotum Annandale, 1905 – smooth-backed gliding gecko, smooth-backed flying gecko, Burmese flying gecko, Burmese parachute gecko Ptychozoon nicobarensis Das & Vijayakumar, 2009 – Nicobar gliding gecko Ptychozoon popaense Grismer, Wood, Thura, M. Grismer, Brown, & Stuart, 2018 – Mt. Popa parachute gecko Ptychozoon rhacophorus (Boulenger, 1899) – Sabah flying gecko Ptychozoon tokehos Grismer, Wood, Grismer, Quah, Thy, Phimmachak, Sivongxay, Seateun, Stuart, Siler, Mulcahy, Anamza, & Brown, 2019 – Cambodian parachute gecko Ptychozoon trinotaterra R.M. Brown, 1999 Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Ptychozoon.

References

Further reading Temminck CJ, van Swinderen T, de Haan W (1822). Kuhl H, van Hasselt JC (eds.). "Uittreksels uit brieven ... aan de Heeren" [Ptychozoon, new genus]. Alg. Konst- en Letter-Bode (in Dutch). 1: 99–104. Smith MA (1935). "Genus Ptychozoon". The Fauna of British India, Including Ceylon and Burma. Reptilia and Amphibia. Vol. II.—Sauria. London: Secretary of State for India in Council.: Taylor and Francis. p. 117. Heinicke MP, Greenbaum E, Jackman TR, Bauer AM (December 2012). "Evolution of gliding in Southeast Asian geckos and other vertebrates is temporally congruent with dipterocarp forest development". Biology Letters. 8 (6): 994–7. doi:10.1098/rsbl.2012.0648. PMC 3497132. PMID 22977067.

External links Global Gecko Association

Illustrations

Worked examples

Example 1 — a first encounter with Ptychozoon

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

In research: Ptychozoon 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 Ptychozoon 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: Ptychozoon is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gekko, Gliding animals, Lizard genera, so understanding it makes those chapters shorter.
In everyday life: Look for Ptychozoon 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 Ptychozoon in 20 minutes

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

Frequently asked questions

What is Ptychozoon in simple terms?

Why does Ptychozoon 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 Ptychozoon?

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 Ptychozoon.