印度犀牛

The great Indian rhinoceros has strong incisors on the lower jaw capable of inflicting severe wounds on predators. It has three toes on each foot, like other members of its family.
The great Indian rhinoceros is the largest Asian rhinoceros. In size, it is second in Asia after the elephant.
The largest population of the great Indian rhinoceros lives in Kaziranga National Park — up to 1600 individuals live there, which is two-thirds of all rhinos of this species in the world. About 600 individuals live in Chitwan National Park in Nepal.
The great Indian rhinoceros boldly attacks an elephant and usually forces it to leave. It is not afraid even of an adult elephant.
The great Indian rhinoceros can detect a predator or human at a distance of hundreds of meters with the help of a favorable wind. It can sense them even with poor eyesight, as its hearing and sense of smell are well developed.
The great Indian rhinoceros can reach a speed of 40 km/h over short distances when in danger or defending itself. Despite its apparent clumsiness, it has excellent reflexes and agility.
The great Indian rhinoceros has a single horn that can be up to 60 cm long, but usually its length does not exceed 25 cm. In females, the horn often barely protrudes and resembles a pointed bump on the nose.
The great Indian rhinoceros is born with a pig-like snout and without a horn, weighs about 65 kg, and already has all the folds and protrusions. One calf is born 16.5 months after conception.
The skin of the great Indian rhinoceros is divided into armored sections formed by folds, making the animal look as if it is wearing armor. These sections hang down, creating a distinctive appearance.
The great Indian rhinoceros has no natural predators except the tiger, for which young rhinos are a favorite delicacy. A tiger cannot deal with an adult rhinoceros, even a female.

年龄

The Indian one-horned rhinoceroses typically live from 30 to 50 years, with a theoretical lifespan ranging from 21 years and 9 months to 43 years and 6 months. The species reaches sexual maturity between 3 years and 6 months and 5 years and 11 months of age. A newborn’s eyes open at birth, and the young begins to walk immediately. The embryo develops inside the mother, receiving all nutrients from her. The newborn is born with a small horn resembling a bump, and it feeds on its mother's milk while remaining close to her. As an adult, the Indian rhino has fully grown and can reproduce; the adult stage lasts from 7 to 50 years. Male Indian rhinoceroses are larger and heavier than females.

表型

The Indian one-horned rhinoceros has a small, soft bump on its nose that gradually hardens into one strong horn made of keratin, which is used for defending territory, protecting against predators, and attracting females; the species possesses short and powerful legs with three toes on each foot, enabling movement across soft ground and running. Adult Indian rhinoceroses have very thick skin with deep folds, protecting them from injuries and aiding in cooling when in mud or water. The young have a small, soft bump on their nose, while adults possess one strong horn made of keratin.

生理学

The Indian one-horned rhinoceros has a body length ranging from 2.8 to 3.8 meters; the species' mass varies from 1.6 to 1.61 metric tons. Young individuals, or calves, weigh from 65 to 80 kilograms and measure between 1.2 and 1.6 meters in body length. Adult Indian rhinoceroses have a body mass ranging from 2 to 3 metric tons and a body length from 3 to 3.8 meters.

栖息地

The Indian one-horned rhinoceros inhabits land, terrestrial meadows, and steppes at elevations up to 300 meters. The species occupies tropical dry forests characterized by heat and a dry season with deciduous trees, tropical moist forests that are consistently hot and humid with large trees and vines, flooded meadows where water frequently covers the ground and there is abundant grass, tropical savannas with uneven rainfall and both grass and trees, and temperate steppes with plentiful grass and few trees. The climate varies; winters have little precipitation while summers bring more rain, and some areas experience very hot summers above 25 to 30 degrees Celsius. Precipitation is low in winter, but abundant during the summer months, and in other regions it is consistently hot with frequent rains, although periods of dryness can occur.

庇护所

The Indian one-horned rhinoceros inhabits grassy thickets near water sources and lacks permanent or long-term shelters. The species does not have a fixed shelter, utilizing aquatic plants and grass for protection, rest, and shade. These materials provide the Indian rhino with cover from the sun and offer a degree of defense.

地理

The Indian one-horned rhinoceros is found within the Indomalaya, Afrotropics, and Palearctic biogeographical realms.

食性

The Indian one-horned rhinoceros eats only plants, including tall grasses, leaves of bushes, aquatic plants, and sometimes fruits. The species obtains food by consuming plants, with its diet consisting of grass, bush leaves, aquatic plants, fruits, and algae. The feeding strategy involves searching for and acquiring food through grazing. Young Indian rhinoceroses consume milk. The daily food requirement ranges from 40 kilograms to 80 kilograms.

繁殖

The Indian one-horned rhinoceroses inhabit and develop on land, outside of bodies of water, and give birth to live young that are not hatched from eggs or spawn. The female’s gestation period is 2 months, and she carries a single offspring for 15–16 months before giving birth; the young is fed and protected by the mother for several years, while males do not participate in rearing. A litter has 1 offspring, and the interval between reproduction is from 2 to 4 years. The species reproduces through homogamy, always with fertilization and without generational change. Sexual maturity occurs between 5 and 10 years.