Tardigrades, often highlighted in the Cosmos show, are remarkable for their ability to survive in extreme environments. While they are considered among the toughest animals, the discussion raises questions about how toughness is scientifically defined, particularly in comparison to bacterial and archaeal species that can form spores. The conversation also touches on the definition of a creature, emphasizing that while tardigrades are fascinating and visually appealing, their toughness may not surpass that of certain microorganisms. Enthusiasts share personal experiences of searching for tardigrades in natural settings, showcasing their interest in these resilient organisms.
