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The Yangtze River in China is well known for its white-fin
dolphin and the Yangtze Dolphin. ___1___
, rising levels of pollution choking the mighty Yangtze are ___2___
the very existence of these creatures. According to The China
Daily, a ___3___
was conducted in early November, 1999 along the lower and middle ___4___
of the river covering a span of some 1500km. The survey ___5___
a count of five white-fin dolphins and 132 Yangtze Dolphins.
These numbers are ___6___
low when compared to the 1990 survey that ___7___
200 white-fin dolphins along the same ___8___
of the river. Scientists think that the ___9___
decline of the rare dolphins is due to ___10___
fish stocks that are killed off by ___11___
river pollution. Experts say that the white-fin dolphin ___12___
extinction within 5 years, taking with it ___13___
information on the development of radar and sonar ___14___
. There is every need, therefore, to ___15___
the decline. |
