Tiger:

Typical tiger country has three main features: It will always have good cover, it will always be close to water and plenty of prey. Bengal Tigers live in all types of forests, including Wet, Evergreen, semi-evergreen of Assam and eastern Bengal; the mangrove forest of Ganges Delta; The deciduous forest of Nepal and thorn forests of the Western Ghats.
Compared to the lion, the tiger prefers denser vegetation, for which its camouflage is ideally suited, and where a single predator is not at a disadvantage compared to a pride. Among the big cats, only the tiger and jaguar are strong swimmers; tigers are often found bathing in ponds, lakes, and rivers. Unlike other cats, which tend to avoid water, tigers actively seek it out. During the extreme heat of the day, they are often to be found cooling off in pools. Tigers are excellent swimmers and can swim up to 4 miles. Tigers are often to be found carrying their dead prey across lakes.
India harbors the largest population of wild tigers in the world, along with one of the highest human populations. A major concerted conservation effort known as Project Tiger has been underway since 1973, spearheaded by Indira Gandhi. The fundamental accomplishment has been the establishment of over 25 well-monitored tiger reserves in reclaimed land where human development is categorically forbidden. The program has been credited with tripling the number of wild Bengal tigers from roughly 1,200 in 1973 to over 3,500 in the 1990s, though the reports of the Indian government are occasionally met with some skepticism.[citation needed] A recently passed tribal Bill, which allows tribal populations to reside inside designated tiger sanctuaries, may have impacts on the continuing success of the program.[citation