Modern weights and measurements on wild tigers

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"Body weight
File:T 17 (Panthera tigris) - Koshyk.jpg
Female Bengal tiger in the Ranthambhore Tiger Reserve
Bengal tigers may weigh up to 325 kg (717 lb) and reach a head and body length of 320 cm (130 in).[15] Several scientists indicated that adult male Bengal tigers from Nepal, Bhutan, and Assam, Uttaranchal and West Bengal in northern India (collectively, the tigers of the Terai) consistently attain more than 227 kg (500 lb) of body weight. Seven adult males captured in Chitwan National Park in the early 1970s had an average weight of 235 kg (518 lb) ranging from 200 to 261 kg (441 to 575 lb), and that of the females was 140 kg (310 lb) ranging from 116 to 164 kg (256 to 362 lb).[18] Males from northern India are nearly as large as Siberian tigers with a greatest length of skull of 332 to 376 mm (13.1 to 14.8 in).[19] Three males captured in Nagarahole National Park in India had a head and body length which 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). Adult male Bengal tigers in Nagarahole National Park ranged from 230 to 260 kg (510 to 570 lb) in weight. An adult male tiger named "T-03" that was killed by a large male gaur, weighed 257 kg (567 lb). Another male, "T-04" who was estimated to be between 3 and 4 years old weighed 250 kg (550 lb) and had a head and body length of 290 cm (110 in). "T-01" was an old male that weighed 231 kg (509 lb). A collared male weighed 240 kg (530 lb) despite the fact that both his canine teeth were broken. The tigresses in the area were equally massive. One female, named "Sundari" weighed 150 kg (330 lb). Another female, named "T-02", had a head and body length of 250 cm (98 in) and weighed 177 kg (390 lb).[20] In comparison, a weight range of 150 to 189 kg (331 to 417 lb) is considered fairly average for a male African lion in the Serengeti.[21][22] Verifiable Sundarbans tiger weights are not found in any scientific literature. Forest Department records list weight measurements for these tigers, but none are verifiable and all are guesstimates. There are also reports of head and body lengths, some of which are listed as over 365.7 cm (144.0 in). More recently, researchers from the University of Minnesota and the Bangladesh Forest Department carried out a study for the US Fish and Wildlife Service and weighed three Sundarbans tigresses from Bangladesh. All three tigers were female, two of which were collared, captured and sedated, but the other one had been killed by local villagers. The two collared tigresses were weighed using 150 kg (330 lb) scales, and the tigress killed by villagers was weighed using a balance scale and weights. The two collared females both showed signs of teeth wear and both were between 12 and 14 years old. The tigress killed by the villagers was a young adult, probably between 3 and 4 years old, and she was likely a pre-territorial transient. The three tigresses had a mean weight of 76.7 kg (169 lb). One of the two older female's weight 75 kg (165 lb) weighed slightly less than the mean due to her old age and relatively poor condition at the time of capture. Skulls and body weights of Sundarbans tigers were found to be distinct from other subspecies, indicating that they may have adapted to the unique conditions of the mangrove habitat. Their small sizes are probably due to a combination of intense intraspecific competition and small size of prey available to tigers in the Sundarbans, compared to the larger deer and other prey available to tigers in other parts.[23]"
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