Post by DinosaurMichael on Jan 9, 2012 21:22:28 GMT -5
Bengal Tiger - Panthera tigris tigris
The Bengal tiger (Panthera tigris tigris) is a tiger subspecies native to the Indian subcontinent that in 2010 has been classified as endangered by IUCN. The total population is estimated at fewer than 2,500 individuals with a decreasing trend, and none of the Tiger Conservation Landscapes within the Bengal tiger's range is large enough to support an effective population size of 250 adult individuals. The Bengal tiger is the most numerous tiger subspecies with populations estimated at 1,520–1,909 in India, 440 in Bangladesh, 124–229 in Nepal and 67–81 in Bhutan. Bengal is traditionally fixed as the typical locality for the binomial Panthera tigris, to which the British taxonomist Reginald Innes Pocock subordinated the Bengal tiger in 1929 under the trinomial Panthera tigris tigris. The Bengal tiger's coat is yellow to light orange, with stripes ranging from dark brown to black; the belly and the interior parts of the limbs is white, and the tail is white with black rings. Male Bengal tigers had a total length, including the tail, from 270 to 310 cm (110 to 120 in), while females range from 240 to 265 cm (94 to 104 in). Tails are 85 to 110 cm (33 to 43 in) long, and height at the shoulders is 90 to 110 cm (35 to 43 in). The head and body length of three males captured in Nagarahole National Park ranged from 189 to 204 cm (74 to 80 in), with a tail length of 100 to 107 cm (39 to 42 in), while a single female measured 161 cm (63 in), with a tail length of 87 cm (34 in). The average weight of males is 221.2 kg (488 lb), while that of females is 139.7 kg (308 lb). Males captured in Chitwan National Park in the early 1970s had an average weight of 235 kg (520 lb) ranging from 200 to 261 kg (440 to 580 lb), and that of the females was 140 kg (310 lb) ranging from 116 to 164 kg (260 to 360 lb). Males from the northern India are as large as Siberian tigers with a greatest length of skull of 332 to 376 mm (13.1 to 14.8 in). The tiger in India has no definite mating and birth seasons. Most young are born in December and April. Young have also been found in March, May, October and November. In the 1960s, certain aspects of tiger behaviour at Kanha National Park indicated that the peak of sexual activity was from November to about February, with some mating probably occurring throughout the year.
Kelenken - Kelenken guillermoi
Kelenken is an extinct genus of giant flightless predatory birds of the family Phorusrhacidae or "terror birds". These birds lived in the Middle Miocene, some 15 million years ago, in Argentina along with Argentavis. With a skull 28 inches (71 cm) long (including its 18 inch, 45.7 cm beak), it had the largest head of any known bird. The tarsometatarsus was about 45 cm long. Kelenken was one of the largest carnivorous birds of all time, possibly reaching 2.28 to 3 meters (7.5 to 10 feet) tall and weighing around 500 pounds (230 kg). It is not entirely clear how Kelenken captured and killed its prey. As a large flightless carnivore, Kelenken likely chased down and killed its prey with several bone-shattering blows from its massive beak. Another possibility is that it may have picked up its prey item, then proceeded to shake it vigorously in order break its back. It is also possible that Kelenken may have been a scavenger, driving off other animals with its impressive size, and ferocious looks.
The Bengal tiger (Panthera tigris tigris) is a tiger subspecies native to the Indian subcontinent that in 2010 has been classified as endangered by IUCN. The total population is estimated at fewer than 2,500 individuals with a decreasing trend, and none of the Tiger Conservation Landscapes within the Bengal tiger's range is large enough to support an effective population size of 250 adult individuals. The Bengal tiger is the most numerous tiger subspecies with populations estimated at 1,520–1,909 in India, 440 in Bangladesh, 124–229 in Nepal and 67–81 in Bhutan. Bengal is traditionally fixed as the typical locality for the binomial Panthera tigris, to which the British taxonomist Reginald Innes Pocock subordinated the Bengal tiger in 1929 under the trinomial Panthera tigris tigris. The Bengal tiger's coat is yellow to light orange, with stripes ranging from dark brown to black; the belly and the interior parts of the limbs is white, and the tail is white with black rings. Male Bengal tigers had a total length, including the tail, from 270 to 310 cm (110 to 120 in), while females range from 240 to 265 cm (94 to 104 in). Tails are 85 to 110 cm (33 to 43 in) long, and height at the shoulders is 90 to 110 cm (35 to 43 in). The head and body length of three males captured in Nagarahole National Park ranged from 189 to 204 cm (74 to 80 in), with a tail length of 100 to 107 cm (39 to 42 in), while a single female measured 161 cm (63 in), with a tail length of 87 cm (34 in). The average weight of males is 221.2 kg (488 lb), while that of females is 139.7 kg (308 lb). Males captured in Chitwan National Park in the early 1970s had an average weight of 235 kg (520 lb) ranging from 200 to 261 kg (440 to 580 lb), and that of the females was 140 kg (310 lb) ranging from 116 to 164 kg (260 to 360 lb). Males from the northern India are as large as Siberian tigers with a greatest length of skull of 332 to 376 mm (13.1 to 14.8 in). The tiger in India has no definite mating and birth seasons. Most young are born in December and April. Young have also been found in March, May, October and November. In the 1960s, certain aspects of tiger behaviour at Kanha National Park indicated that the peak of sexual activity was from November to about February, with some mating probably occurring throughout the year.
Kelenken - Kelenken guillermoi
Kelenken is an extinct genus of giant flightless predatory birds of the family Phorusrhacidae or "terror birds". These birds lived in the Middle Miocene, some 15 million years ago, in Argentina along with Argentavis. With a skull 28 inches (71 cm) long (including its 18 inch, 45.7 cm beak), it had the largest head of any known bird. The tarsometatarsus was about 45 cm long. Kelenken was one of the largest carnivorous birds of all time, possibly reaching 2.28 to 3 meters (7.5 to 10 feet) tall and weighing around 500 pounds (230 kg). It is not entirely clear how Kelenken captured and killed its prey. As a large flightless carnivore, Kelenken likely chased down and killed its prey with several bone-shattering blows from its massive beak. Another possibility is that it may have picked up its prey item, then proceeded to shake it vigorously in order break its back. It is also possible that Kelenken may have been a scavenger, driving off other animals with its impressive size, and ferocious looks.
