Question map
Consider the following pairs : 1. Brazil - Indri 2. Indonesia - Elk 3. Madagascar - Bonobo How many of the pairs given above are correctly matched ?
Explanation
The correct answer is option D (None of the pairs are correctly matched).
Let me explain why each pairing is incorrect:
**Pair 1 (Brazil - Indri):** The Indri is actually a lemur species that is endemic to Madagascar, not Brazil. Brazil is second only to Indonesia as the country with the most endemic species[2], but the Indri is not among them—it is found exclusively in Madagascar's rainforests.
**Pair 2 (Indonesia - Elk):** Elk (also known as wapiti) are large deer species native to North America and parts of East Asia, not Indonesia. Indonesia is known for its tropical biodiversity including orangutans, Komodo dragons, and various endemic bird species, but not elk.
**Pair 3 (Madagascar - Bonobo):** Bonobos (Pan paniscus) are great apes endemic to the Democratic Republic of Congo in Central Africa, not Madagascar. Madagascar is famous for its lemurs, fossas, and unique biodiversity, but has no native great apes.
Since none of the three animal-country pairs are correctly matched, the answer is "None."
SourcesPROVENANCE & STUDY PATTERN
Full viewThis is a classic 'Biogeographic Sense' question disguised as a trivia quiz. You aren't expected to memorize every animal in Brazil, but you MUST know the fundamental rules of global ecology: Lemurs are strictly Old World (Madagascar), and Great Apes (Bonobos) are strictly Mainland Africa/Asia, never on islands like Madagascar.
This question can be broken into the following sub-statements. Tap a statement sentence to jump into its detailed analysis.
Gives a geographic pattern for lemurs: 'Lemurs occur in India, Madagascar and Africa', implying their usual ranges are Old World landmasses rather than South America.
A student could compare this pattern with a world map to see whether Brazil (in South America) fits those listed regions and thus judge whether lemurs are likely native to Brazil.
Repeats the observation that lemurs occur in India, Madagascar and Africa and places such distributions in the context of historical continental connections (Lemuria).
Use basic palaeogeography (locations of Madagascar/Africa/India) to infer that lemurs are associated with those landmasses, not with South America/Brazil.
Lists Brazil among global 'mega diversity' countries, indicating Brazil has many endemic species and distinct faunas.
A student could use this to reason that if Brazil were home to lemurs, the country’s biodiversity lists would specifically include lemur taxa; absence of lemurs from the cited lemur distribution hints they are unlikely native to Brazil.
Mentions 'lemur' in a general list of animals in tropical evergreen forests (from a textbook section on India), illustrating that common-fauna lists may include species names but require checking geographic context.
A student should verify the regional focus of such lists (here India) and then check whether that regional focus overlaps Brazil; this warns against assuming a species named in a generic biome list is globally distributed.
Lists Indonesia among tropical/subtropical countries for crops (mesta), indicating Indonesia is a tropical country/region.
A student could combine this with a world map and known climate‑preferences of elk (typically temperate/boreal) to suspect elk are unlikely native to tropical Indonesia.
Shows that species/crops such as rubber were diffused from Brazil to Indonesia and that Indonesia has a hot, humid tropical climate requirement.
Use the climate implication (hot, humid, tropical) against the typical habitats of many elk species (often cooler temperate zones) to judge plausibility of elk being native there.
Provides a list of herbivorous mammals (elephants, rhinoceros, various deer and antelopes) and the specific deer/antelopes found regionally in South Asia.
Compare the named regional deer species with a checklist of cervids: if elk is not listed among regional deer in nearby South/Southeast Asia, a student might infer elk's native range likely lies elsewhere and verify on a distribution map.
Gives specific deer species and their Indian regional distributions (e.g., Barasingha, Chiru, spotted deer types) but does not include 'elk' among native Indian cervids.
A student can note that comprehensive regional lists omit elk and therefore combine this absence with a map of elk distribution to assess whether elk occur naturally in Indonesia.
Describes the wildlife of the Indian subcontinent, listing several deer species and emphasising India’s fauna composition without mentioning elk.
Use this as an example that South/Southeast Asian wildlife lists typically name local deer species; absence of elk here suggests checking whether elk are native to tropical Asian islands like Indonesia via a species range map.
States that Madagascar and nearby islands have several primate families that live nowhere else, highlighting Madagascar's distinct, endemic primate fauna.
A student could use this pattern to infer that primates native to Madagascar are likely endemic groups (e.g., lemurs) and therefore check whether Pan paniscus belongs to those endemic families or to an African mainland group.
Defines the 'Ethiopian region' as covering continental Africa and adjacent islands like Madagascar and lists main animals including gorilla and chimpanzee, implying a distinction between typical African mainland apes and Madagascar fauna.
A student could compare ranges of named African apes (gorilla, chimpanzee) on a map to Madagascar to assess whether Pan species are found on the island or only on the continent.
Notes that lemurs occur in India, Madagascar and Africa and that such distributions led to hypotheses of past land connections; this highlights that lemurs (a primate group) are specifically associated with Madagascar in these sources.
A student could use the fact that lemurs are emphasized for Madagascar to check whether bonobos are grouped with lemurs or with African apes, suggesting where Pan paniscus is native.
Explains the biogeographic puzzle of identical land/freshwater taxa across oceans and repeats the point that lemurs occur in Madagascar, reinforcing Madagascar's characteristic primate associations.
A student could contrast the specially noted lemur distribution with known distributions of the genus Pan to judge if bonobos fit Madagascar's primate pattern or that of African mainland apes.
Describes ocean current branches around Madagascar and between Madagascar and Mozambique, emphasizing Madagascar's maritime separation from mainland Africa.
A student could use basic geography (a map and ocean barriers) to reason about whether a large terrestrial ape species would naturally occur on Madagascar without human-mediated introduction.
- [THE VERDICT]: Conceptual Trap. It looks like a 'Random Species' bouncer, but it is solvable using NCERT Class XI Geography principles (Continental Drift & Lemuria).
- [THE CONCEPTUAL TRIGGER]: Biogeographic Realms. The fundamental difference between Neotropical (Brazil), Afrotropical (Congo/Madagascar), and Indomalayan (Indonesia) faunas.
- [THE HORIZONTAL EXPANSION]: Memorize the 'Flagship Endemics': Madagascar (Indri, Fossa, Aye-Aye, Tenrec); Congo Basin (Bonobo, Okapi, Grauer’s Gorilla); Indonesia (Orangutan, Komodo Dragon, Babirusa, Anoa); Brazil (Golden Lion Tamarin, Jaguar, Capybara).
- [THE STRATEGIC METACOGNITION]: Stop memorizing IUCN lists blindly. Instead, map animal 'Families' to 'Continents'. Ask: 'Are Lemurs found in South America?' (No, only Madagascar/Comoros). 'Are Elk tropical?' (No, they are Temperate/Boreal).
Lemurs are associated with India, Madagascar and Africa rather than South America, so knowing lemur ranges is essential to judge if an indri could be native to Brazil.
High-yield for questions on species nativity and biogeography; links directly to conservation, endemic species and distribution patterns in GS Paper I/III. Mastering this helps answer nativity/endemism questions and compare faunal realms.
- FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 3: Interior of the Earth > Distribution of Fossils > p. 28
- Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 7: Tectonics > Distribution of Fossils > p. 97
- CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 5: Natural Vegetation and Wildlife > Tropical Evergreen Forests > p. 40
Madagascar and Brazil are both listed as megadiversity centres but host different endemic faunas; distinguishing hotspots clarifies whether a given species is likely native to Brazil.
Crucial for questions on hotspots, conservation priorities and species protection policies; connects biodiversity facts to international conventions and national conservation planning.
- FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 14: Biodiversity and Conservation > CONSERVATION OF BIODIVERSITY > p. 118
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 4: BIODIVERSITY > south America > p. 7
The Lemuria hypothesis was proposed to explain disjunct lemur distributions across India, Madagascar and Africa, showing past land connections shape current species distributions.
Useful for answering questions that link plate tectonics, fossil distribution and present-day biogeography; enables explanation of discontinuous species ranges and supports reasoning in physical geography and environment sections.
- FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 3: Interior of the Earth > Distribution of Fossils > p. 28
- Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 7: Tectonics > Distribution of Fossils > p. 97
Lists of Indian deer species demonstrate that cervid distributions are region-specific within South Asia.
Understanding which deer species are native to particular regions helps answer biogeography and wildlife distribution questions; it connects to conservation, national parks and species protection policy. High-yield for questions on animal endemism and habitat-based distribution.
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 4: BIODIVERSITY > x) not evaluated (ne) > p. 16
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Herbivorous > p. 82
- CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 5: Natural Vegetation and Wildlife > WILDLIFE > p. 43
Invasion and species richness concepts explain how non-native species can be added to or reduce a region's native species pool.
Helps tackle UPSC questions on invasive species, biodiversity loss and biodiversity management; links ecological theory to policy responses and conservation strategy. Enables analysis-type answers about causes and consequences of biological invasions.
- Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 13: Plant Diversity of India > 13.4.1. Invasion and Species Richness > p. 199
Distribution and diffusion records for crops like rubber and mesta show how human activity moves species across countries including Indonesia.
Useful for questions on agricultural biogeography, crop origins and diffusion, and human impacts on species distribution; connects physical geography, economic geography and environmental change topics frequently tested in UPSC.
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Mesta (Hibicus sabdarifa) > p. 51
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Rubber (Hevea brasiliensis) > p. 48
Madagascar harbours primate families and primates found nowhere else, so determining whether a given primate is native requires knowledge of Madagascar's high endemism.
High-yield for UPSC because questions often test island endemism and biodiversity hotspots; links to conservation policy and species distribution topics. Mastery helps eliminate implausible native ranges for species and frames answers on endemic species protection.
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 4: BIODIVERSITY > Africa > p. 8
- Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 2: PLANT AND ANIMAL KINGDOMS > 4. Ethiopian region > p. 13
The 'Wallace Line'. Just as Madagascar is distinct from Africa, the Wallace Line separates Indomalayan fauna (Tigers, Orangutans) from Australasian fauna (Marsupials). Expect a question asking why Kangaroos aren't in Indonesia (West of the line).
Use the 'Plate Tectonics' Hack: Madagascar separated from Africa ~160 million years ago, long before Great Apes (Bonobos) evolved. Therefore, it is geologically impossible for a Bonobo to be native to Madagascar. Similarly, 'Indri' sounds like 'India', but it's a Lemur. NCERT explicitly links Lemurs to 'Lemuria' (India-Madagascar-Africa connection), NOT South America (Brazil). Pairs 1 and 3 eliminated instantly.
Anthropology & Evolution (Mains GS-I/III): The distribution of Bonobos (South of Congo River) vs Chimpanzees (North) is a classic example of 'Allopatric Speciation' driven by geographic barriers. This explains why river systems define biodiversity hotspots.