Question:
The gestation period for the greater one-horned rhinoceros (Rhinoceros unicornis) is generally about ________ months.
The gestation period for the greater one-horned rhinoceros (Rhinoceros unicornis) is generally about ________ months.
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Large mammals have exceptionally long gestation periods: elephants take about 22 months, while rhinos take about 16 months, making their populations highly vulnerable to rapid declines.
Updated On: Jul 10, 2026
- Twenty
- Four
- Nine
- Sixteen
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Gestation period is the duration of pregnancy in mammalian species, varying significantly based on body size, environmental adaptations, and evolutionary lineage.
Step 2: Detailed Explanation:
The greater one-horned rhinoceros (Rhinoceros unicornis), also known as the Indian rhinoceros, is one of the largest megaherbivores of Asia.
Because of their immense body mass, embryonic development is slow and highly regulated.
The gestation period of a female Indian rhino generally lasts for approximately 460 to 480 days, which translates to about 15.5 to 16 months.
This long gestation period results in a low reproductive rate, typically yielding a single calf once every 3 to 4 years, which is a major constraint in wildlife conservation and recovery programs.
Step 3: Final Answer:
The gestation period of the greater one-horned rhinoceros is approximately 16 months.
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