Invisible companions: there are some 40,000 animal species native to Switzerland. If you'd like to spot a few on your next walk through the woods, here's what to look for.
Swiss News › Nbr. 2003, June 2003
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Invisible companions: there are some 40,000 animal species native to Switzerland. If you'd like to spot a few on your next walk through the woods, here's what to look for.
Even scientists don't know the precise number of animal species in the world. A common estimate is one-and-a-half million. What they do know is that at least three-quarters of them are insects. One cubic meter of earth in a forest contains at least 200,000 insects.
Switzerland's fauna is a microcosm of the world's. Less than one percent of Switzerland's 40,000 species are vertebrates (i.e. have backbones). Only 83 of these 376 vertebrates are mammals. Another 200 are birds, a...See the full content of this document
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