Explanations:The one-horned rhinoceros, scientifically known as Rhinoceros unicornis, is a large mammal that is native to the Indian subcontinent. This species is primarily found in the swampy and marshy lands of Assam and West Bengal, which are regions in northeastern India. The one-horned rhinoceros is well-adapted to these environments, which provide the necessary conditions for its survival and reproduction.
The habitat of the one-horned rhinoceros is characterized by dense vegetation, tall grasses, and water bodies such as rivers, lakes, and swamps. These conditions are ideal for the rhinoceros as they provide ample food sources, such as grasses and aquatic plants, and also offer protection from predators and harsh weather conditions. The rhinoceros is a herbivorous animal and feeds on a variety of plant materials, which are abundant in these swampy and marshy areas.
Assam and West Bengal are home to several protected areas where the one-horned rhinoceros can be found. Kaziranga National Park in Assam is one of the most important habitats for this species, with a significant population of one-horned rhinoceroses. The park provides a safe and protected environment for the rhinoceros to thrive, and conservation efforts have been successful in increasing the population of this endangered species.
It is important to note that the one-horned rhinoceros is a critically endangered species, and its habitat is under threat due to human activities such as deforestation, poaching, and habitat destruction. Conservation efforts are crucial to ensure the survival of this species and to maintain the ecological balance of the swampy and marshy lands of Assam and West Bengal.
Other large mammals such as elephants, nilgai, and lions are not typically found in the swampy and marshy lands of Assam and West Bengal. Elephants are more commonly found in forests and grasslands, nilgai inhabit grasslands and scrub forests, and lions are native to the grasslands and forests of central and western India. Therefore, the one-horned rhinoceros is the correct answer for the animal that lives in the swampy and marshy lands of Assam and West Bengal.