Nicklas Strömberg in Sweden has created a very useful online service, the GlobalTwitcher.com for those interested in the living nature. The service database is impressive as it contains animal, plant and mushroom world/regional/country lists with more than 50,000 species and 22,000 subspecies. You can tick and create your own lists and compare them with others. You can also find all sort of multimedia files and upload your owns.
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