Varliagyviai gali išnykti,
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Įrašė: Mindaugas
Data: 2005 09 29
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dėl ekeperimentu su jais.
According to the most recent global assessment, almost a third of this animal grouping - a category that includes frogs, toads, salamanders and caecilians (legless amphibians) - is judged to be at risk of extinction.
In the 1930s and 40s, live female Xenopus frogs were used widely in Europe, Australasia and north America in pregnancy testing.
Thousands of Xenopus were exported from Africa each year, potentially carrying Batrachochytrium with them, and - perhaps through occasional escapes - delivering it to the habitats of other continents, where it could inflict major damage on amphibian species that were more vulnerable.
Plačiau: http://news.bbc.co.uk/1/hi/sci/tech/4257232.stm |
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