Abstract: Dissections were made of the larynges of 14 species of the cat family, with representative specimens from all genera. It was found that the vocal folds of the larynx of genus Panthera (with the exception of the snow leopard) form the basic structure of a sound generator well- designed to produce a high acoustical energy. Combined with an efficient sound radiator (vocal tract) that can be adjusted in length, a Panthera can use its vocal instrument literally to blow its own horn with a 'roar'. Also, it is proposed that laryngeal morphology can be used as an anatomical character in mammalian taxonomy.

Abstract: Due to development of new lands and increased anthropogenic pressure animals are displaced from their habitats. Intense poaching caused dying away a number of animals such as Turan tiger, moral, and kulan in Uzbekistan at the end of 19th beginning of 20th century. The endangered species are marchor, cheetah, lynx, snow leopard, caracal, and cobra. Species put on the verge of a total extermination are included in the national Red Data Book (22 mammal species, 31 bird species, five reptile and five fish species). The introduction of some species such as raccoon, European fallow deer, nylghau, and chinchilla was unsuccessful.