Questions on species

 Analyzing the trends across past years shows that UPSC has significantly transformed how it asks questions on species. It moved from asking simple "match the following" questions about wildlife sanctuaries in the early 2000s to deep, micro-behavioral, and legal/scientific statement-based questions in recent years.

Here is a comprehensive compilation of landmark species-specific questions asked over the last few decades, organized from the most recent down to the foundational papers.

📅 The Modern Era (High-Fidelity Behavioral & Legal Questions)

UPSC Prelims 2024

Question: Consider the following statements:

• Statement I: The Indian Flying Fox is placed under the “vermin” category in the Wild Life (Protection) Act, 1972.

• Statement II: The Indian Flying Fox feeds on the blood of other animals.

Which one of the following is correct in respect of the above statements? (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct but Statement-II is not the correct explanation for Statement-I (c) Statement-I is correct but Statement-II is incorrect (d) Statement-I is incorrect but Statement-II is correct

• Key Concept: This question targeted a bat species (highly relevant to the current 2026 bat report checklist). Answer is (c). Statement II is a trap—flying foxes are fruit-eating bats, not vampire bats.

UPSC Prelims 2023

Question: Consider the following heavy statement-based profiles:

1. Some species of turtles are herbivores.

2. Some species of fish are herbivores.

3. Some species of marine mammals are herbivores.

4. Some species of snakes are viviparous.

Which of the statements given above are correct? (a) 1 and 3 only (b) 2, 3 and 4 only (c) 2 and 4 only (d) 1, 2, 3 and 4

• Key Concept: Broad biological traits. Answer is (d). (Dugongs are herbivorous marine mammals, green sea turtles are herbivorous, and species like vipers/sea snakes give live birth).

Question: Consider the following pairs (Species vs. Common Behaviour):

1. Lion-tailed Macaque — Nocturnal

2. Malabar Civet — Nocturnal

3. Sambar Deer — Nocturnal

How many of the above pairs are correctly matched? (a) Only one (b) Only two (c) All three (d) None

• Key Concept: Diurnal vs. Nocturnal rhythms. Answer is (b). Lion-tailed macaques are diurnal (active during the day), whereas civets and sambar deer are primarily nocturnal.

UPSC Prelims 2020

Question: With reference to Indian elephants, consider the following statements:

1. The leader of an elephant group is a female.

2. The maximum gestation period can be 22 months.

3. An elephant can normally go on calving till the age of 40 years only.

4. Among the States in India, the highest elephant population is in Kerala.

Which of the statements given above are correct? (a) 1 and 2 only (b) 2 and 4 only (c) 1, 3 and 4 only (d) 1, 2, 3 and 4

• Key Concept: Core matriarchal mammalian behavior. Answer is (a). Karnataka, not Kerala, holds the highest population.

📅 The Intermediate Era (Ecological Roles & Adaptive Traits)

UPSC Prelims 2019

Question: Which of the following are true about the "Gharial" in its natural habitat? (a) It is found naturally only in the saltwater bodies of Odisha. (b) Chambal River is its premier natural habitat in India. (c) It has become completely extinct in the wild. (d) It is an invasive species introduced from Africa.

• Key Concept: Riverine indicators. Answer is (b). National Chambal Sanctuary houses the vast majority of its remaining population.

UPSC Prelims 2014

Question: Which of the following organisms are known as filter feeders? (a) Catfish (b) Octopus (c) Oyster (d) Pelican

• Key Concept: Ecological feeding mechanisms. Answer is (c).

UPSC Prelims 2012

Question: Consider the following animals of India:

1. Sea cow

2. Sea horse

3. Sea lion

Which of the above is/are mammal/mammals? (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

• Key Concept: Biological distinction among marine life. Answer is (a). Sea lions are mammals but are not found naturally in India.

📅 The Classic Era (Distributions, Biomes & Sanctuaries)

UPSC Prelims 2007

Question: Which one of the following animals is famous for its unique adaptation of the "Kharai" swimming trait across saline water systems? (a) Wild Ass (b) Desert Fox (c) Camel (d) Indian Gazelle

• Key Concept: Regional unique adaptive traits. Answer is (c). This references the unique ecotype of the Kharai camel found in the Rann of Kutch.

UPSC Prelims 2002

Question: In which one of the following states is the Namdapha National Park located? (a) Arunachal Pradesh (b) Manipur (c) Meghalaya (d) Mizoram

• Key Concept: General geography mapping. Answer is (a). Today, UPSC doesn't just ask where Namdapha is—they test that it acts as the specific habitat for the critically endangered White-bellied Heron.

🧠 Core Strategy Takeaway for Prelims 2026

Looking over these questions reveals how UPSC traps aspirants:

1. Taxonomic Shifts: Interchanging Arachnid (Spiders) with Crustacean, or Mammal with Reptile.

2. Feeding Habits: Testing whether an animal is an obligate herbivore (like the Dugong) or carnivore.

3. State-wide Rank Pitfalls: Flipping peak population metrics (e.g., falsely stating Kerala instead of Karnataka for Elephants).

For the comprehensive 2026 species checklist you have compiled, look beyond basic flashcards and focus on how each animal lives and breathes.