水牛
- The Asian buffalo has earned the nickname "the live tractor of the East." This large animal can reach a height of up to 1.9 m and weighs more than a ton.
- The horns of the water buffalo are among the longest of any bovid and can reach a span of about two metres.
- Male Asian buffalo are adorned with crescent-shaped horns up to 1.5 m long, featuring deep grooves on their surface. Female horns are smaller in size.
- Water buffalo milk is significantly richer in fat and protein than cow’s milk and is the basis for mozzarella and ghee.
- Water buffalo herds often have a matriarchal structure.
- The water buffalo was domesticated roughly 3000–7000 years ago and became the key draft animal in rice fields.
- The buffalo is a good swimmer, and its wide hooves help it move through marshy ground.
- There are two main types of water buffalo — river and swamp — which differ in chromosome number.
- The Asian water buffalo is a domestic animal, while its wild ancestor Bubalus arnee is now extremely rare.
- The water buffalo spends hours lying in water or mud to cool itself and protect against parasites.
年龄
The Asian buffalo typically lives for 15 to 25 years, with a maximum recorded lifespan of 32 years and 6 months and a theoretical maximum of 34 years and 11 months; the species reaches sexual maturity between 1 year and 4 months and 2 years and 3 months of age. The young are born with their eyes open and begin walking immediately. During the embryonic stage, the fetus develops inside the mother, receiving nourishment through the placenta and not eating independently. The calf lives with its mother, drinks milk, and gradually begins to eat grass, growing rapidly while learning to walk and swim, a phase lasting from 1 day to 1 year. Following this rapid growth, the young buffalo transitions to a diet of vegetation but has not yet reached its full adult size, a stage that lasts from 1 to 4 years. The adult stage begins when the animal is fully grown and capable of reproduction, which can last from 4 to 35 years; males are larger than females and possess more powerful horns.
表型
The young Asian buffalo has a body covered with sparse fur and relatively long legs, with small horns just beginning to grow. After a period of rapid growth, the species develops a massive body with a wide chest and short neck, possessing dark, thick skin and wide hooves that aid in walking on soft mud and preventing sinking. The horns continue to grow and curve backward and outward; the female’s horns are shorter and thinner than those of the male. An adult Asian water buffalo is a large, heavy animal with thick skin, which protects it from insect bites, and a tail with a tuft at the end used to shoo away insects.
生理学
The Asian buffalo’s body height ranges from 1.21 to 1.31 meters, and its body length ranges from 2.2 to 3 meters; the species' mass varies from 0.57 to 0.74 tons. During the “embryo” stage, the developing young have a body mass from 0 to 35 kilograms and a body length from 0 millimeters to 80 centimeters. The “calf” stage sees young with a body mass from 30 kilograms to 0.25 tons and a body length from 80 centimeters to 1.5 meters. Following rapid growth, the young have a body mass from 0.25 to 0.7 tons and a body length from 1.5 to 2.4 meters. The “adult” stage shows individuals with a body mass from 0.7 to 1.2 tons and a body length from 2.4 to 3 meters.
栖息地
The Asian buffalo inhabits tropical dry forests with hot temperatures and a dry season, as well as flooded meadows where water frequently covers the ground and there is abundant grass; the species also lives in tropical savannas that are hot with uneven rainfall and plentiful grass and trees, and temperate steppes with abundant grass and few trees, where rainfall occurs. Asian water buffalo are found in landscapes including swamps and marshes, dry land, terrestrial meadows and steppes, and terrestrial grasslands. The climate varies across habitats, with little precipitation in winter and more in summer, or hot temperatures and little winter precipitation but summer rains; some areas have consistently hot and humid conditions with nearly daily rainfall, while others experience consistently hot weather with frequent rain but occasional dryness, and still other locations are perpetually wet with almost constant rainfall. The species’ elevation range extends up to 1.5 kilometers above sea level.
庇护所
The Asian buffalo is found in rivers, lakes, and marshes; the species does not have a permanent or long-term shelter. It lacks a fixed shelter and does not use any permanent structures. The materials used for shelter include aquatic plants, grass, and reeds. The purposes of shelter are protection from insects, rest, and protection from the sun.
地理
The Asian buffalo occupies the Indomalaya and Australasia biogeographical realms. The species is found within tropical savanna ecosystems, including the Arnhem Land tropical savanna, the Carpentaria tropical savanna, and the Kimberley tropical savanna.
食性
The Asian buffalo is a herbivorous animal that eats grass, aquatic plants, and leaves, spending much of its time grazing and in water; it obtains food by gnawing on plants, consuming grass, aquatic plants, reeds, leaves, cattails, algae, sedge, and cane. The species’ feeding strategy involves searching for and obtaining food through grazing, with a daily food requirement ranging from 10 kilograms to 25 kilograms. Young carabaos consume milk. Enemies of the Asiatic buffalo include monitor lizards and true crocodiles.
繁殖
The Asian buffalo reproduces sexually, with offspring born live on land and not hatching from eggs or larvae; the female carries a single calf for a gestation period of ten months and three weeks and cares for it after birth. The species inhabits and develops on land, outside of bodies of water. A litter has one young, and reproduction always involves fertilization without alternation of generations. The interval between reproductions is from one to two years. The female reaches maturity from two to five years of age. Reproduction is homogamy, meaning it always involves fertilization.