1.   In some regions of the state, this is threatening several species of fish, he says.

2.   Individual immortality would threaten the species as a whole - almost certainly with fatal results.

3.   Many species are threatened in the wild due to habitat destruction by man and probably over-hunting.

4.   The large numbers of wild orchids being traded threatens some species with extinction.

5.   This is a practice that has threatened several species.

6.   The campaigners claim that this will threaten vulnerable species of fish, low-XXXX lying meadows, and even pose dangers to local supplies of drinking water.

7.   International trade in garden plants is damaging habitats and threatening some species with extinction.

8.   Biologists and government officials here say the seal population is expanding so rapidly that many more could be hunted without threatening the species.

9.   African elephant births in captivity are rare, and in the wild the species is threatened with extinction.

10.   But a recent sweep of San Francisco Bay Area abalone poachers unveiled again how greed and a lucrative black market have severely threatened a species.

v. + species >>共 298
protect 12.37%
threaten 4.41%
preserve 3.33%
save 3.23%
find 3.12%
endanger 2.80%
include 2.69%
list 2.26%
identify 1.72%
have 1.61%
threaten + n. >>共 1339
action 5.20%
sanction 3.29%
life 2.90%
security 2.82%
stability 2.18%
retaliation 2.07%
strike 2.04%
attack 1.94%
veto 1.46%
violence 1.40%
species 0.53%
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