Season 15 Episodes23
Cast2

Alberto Angela
Self - Host

Saverio Indrio
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Invisible yet incredibly powerful, microorganisms have always been our companions. In this episode, Alberto Angela leads us on a journey to discover these infinitely small creatures, showing us how our lives, and sometimes even our deaths, depend on them. Ulysses's journey begins in Benin, where

Alberto Angela
Self - Host

Saverio Indrio
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"Invisible Enemies (Second Version)" is episode 12 of Ulisse - The Pleasure of Discovery season 15. It aired on January 26, 2015.