<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.songwe black mamba ni moja ya nyoka hatari zaidi - sumu yake inaweza kumuua binadamu chini ya dakika 30.  <response>: the funnel web spider is one of the most dangerous spiders in the world, and their venom can kill a human within 15 minutes. 