Is life expectancy linked to intelligence in animals?
Limiting the conversation to mammals, and taking relative brain size as a proxy for intelligence (which, of course is not necessarily "true", but at least is quantifiable), the answer is yes: body-size relative  brain size correlates with   body-size relative longevity in mammals.


  using a global database of 493 species, we provide evidence showing that mammals with enlarged brains (relative to their body size) live longer and have a longer reproductive lifespan (González-Lagos et al.).


They present data by species in the paper, which is available free online, but so as to have something on SE, I've mocked up a chart based on the averages they give for each mammal order: 




 González-Lagos C, Sol D, Reader SM. 2010. Large-brained mammals live longer. Journal of Evolutionary Biology 23: 1064–1074.