RHINO PREGNANCY PERIOD PATCH

Average gestation period 502 days AnAge.gonochoric/gonochoristic/dioecious (sexes separate).( Barbour and Glover, 1932 Groves and Leslie Jr., 2011 Hariyadi, et al., 2011 van Strein, et al., 2008) It was fully grown by the age of 4 and had reached 170cm in length. In a second case, a young rhino, in which the age was not specified, was 130cm in length. In one case, a fetus was noted to be 17cm and presumed to be halfway through gestation.

Only anecdotal information is available regarding growth and rate of maturity. Rhinos of this species attain sexual maturity as early as 5-7 years of age for females, and 10 years of age in males. The breeding interval is once every 4-5 years, due to a 16-month gestation period and a lengthy period of mother-calf interaction. Javan rhinos breed year-round, producing one calf at a time. Male rhinos will 'whistle' to attract females in the area typically the loudest whistle is associated with the most dominant male. Other species of rhinos like the Indian rhino ( Rhinoceros unicornis) have extensive ritualized behaviors prior to copulation, occasionally resulting in serious injury. One pairs had been observed tearing up vegetation together, followed by a pursuit of over 200m. Male and female Javan rhinos fight and produce loud roars, presumably a type of courtship. Mating behavior in Rhinoceros sondaicus has only been observed on a few accounts, but it is thought to be polygynandrous. Much of the historical information about physical description on the rhino is questionable as it had been mistaken for the Sumatran rhinoceros, Dicerorhinus sumatrensis through the late 1800's. Is has large incisor teeth however, no information on the description of the incisors has been published.

RHINO PREGNANCY PERIOD PATCH

The 70-cm tail has a patch of hair at the end.Īs a forager, the rhino has developed an elongated upper lip that extends out and over the bottom lip. The body mass of both sexes can range from 1500-2000 kg.ĭespite being virtually hairless, the Javan rhino does have sparse hairs around the nose and horn. However, some measurements of heads indicate that females are larger. Males and females have a similar average body mass. Rhinoceros sondaicus averages about 1.7m at the shoulder.

The horn shares the same color of the hide. The folds of the Javan rhino are present on the shoulder, the back, and the hind end. Unlike Rhinoceros unicornis (Indian rhinoceros), the Javan rhino has a dorsal crease rather than one originating from the neck. The Javan rhino has a grey hide with multiple rigid folds that come together to form sectionalized creases. The horn has no attachment to the bone structures of the skull. Mature males have only one horn that is 25 cm long, while females lack a horn entirely. Rhinoceros sondaicus is also known as the lesser one-horned rhinoceros, as its horn is smaller than any of the other rhino species. This lowland species may be found at elevations up to 1000m, but it's much more common below 600m. Rhinoceros sondaicus thrives in the lowland, grassy fields close to a water source where it typically spends most of the day wallowing. Javan rhinos are most commonly found in tropical forests that are generally close to sea level. ( Barbour and Glover, 1932 Penny, 1988 Schenkel and Schenkel-Hulliger, 1969)

There is also a small (less than 10 individuals) population in the Cat Tien National Park in Viet Nam. Today, its only known location is in the Udjong Kulon Nature Reserve, located in the furthest southwestern areas of Java, where some 50 individuals remain. The rhino once inhabited the majority of the Javan island. It is possible that the rhino's range included the southern Malaysian peninsula. It was also found in the north and northeastern region of Thailand, extending into Cambodia. However, it is known that the Javan species also inhabited all areas of Sumatra. In the past, the Javan rhino ranged from the highest northern parts of Burma and quite possibly extended to present-day eastern Vietnam. The historical range of the Javan rhino is believed to have included southeastern areas of Asia. The Javan rhino, Rhinoceros sondaicus, is also known as the lesser-one horned rhino.

Rhino pregnancy period