White tigers are neither a species nor a subspecies, but appear as a result of a recessive trait that rarely occurs in the wild. In the 1950s many zoos deliberately and indiscriminately bred white tigers, but more recently, concerns about the desirability of preserving a trait that presumably hinders tigers' to survive in the wild, and recognition that inbreeding could lead to genetic defects, have caused most zoos to such practices. However, some zoo managers argue that the popularity of white tigers provides income important to the survival of zoo sponsored scientific and conservation programs. They also point out that most of the white tigers captured in the wild were adults, proving that their coloration does not hinder their survival ability.
Opponents of white-tiger breeding programs argue that white tigers are merely Indian tigers—a subspecies well represented in both zoos and the wild—and that zoos should focus their tiger management efforts on preserving subspecies whose existence is threatened, thus preventing the Chinese and Indochinese tiger subspecies from joining the Javan, Balinese, and Caspian subspecies in extinction. Alternatively, zoos could mingle the subspecies and manage all tigers in captivity as one species. Although subspecies differences would be lost, this strategy would be advantageous because fewer animals would be necessary to maintain the genetic diversity of tigers in captivity, making scarce zoo resources available for housing other endangered felines.
The author of the passage suggests that if all tigers in captivity were managed as one species, then zoos would be able to
use their resources to preserve a variety of other felines
increase public interest in tigers and thus attract more visitors and income
provide better habitats for tigers than they currently do
prevent the extinction of existing tiger subspecies
continue breeding white tigers
此讲解的内容由AI生成,还未经人工审阅,仅供参考。
A. use their resources to preserve a variety of other felines 是正确答案。根据文章最后一段,如果处理所有圈养老虎作为一个物种,那么它能够减少动物以保持老虎圈养中的基因多样性,从而使稀缺的动物园资源可用于容纳其他濒危的猫科动物。
this strategy would be advantageous because fewer animals would be necessary to maintain the genetic diversity of tigers in captivity, making scarce zoo resources available for housing other endangered felines.
this strategy would be advantageous because fewer animals would be necessary to maintain the genetic diversity of tigers in captivity, making scarce zoo resources available for housing other endangered felines.
取非+同义替换
Alternatively, zoos could mingle the subspecies and manage all tigers in captivity as one species. Although subspecies differences would be lost, this strategy would be advantageous because fewer animals would be necessary to maintain the genetic diversity of tigers in captivity, making scarce zoo resources available for housing other endangered felines. 对应内容。 所以是动物园就可以去保护其他物种了