The tragedy is being hailed as a microcosm of the country's economic woes.
"The story of the animals at Caricuao is a metaphor for Venezuelan suffering," union leader Marlene Sifontes told Reuters.
The country, which is under a state of emergency, is reeling from the worst economic crisis in its history.
While that crisis is the obvious factor in the deaths of zoo animals, the tragedy also, once again, brings the issue of captive animals to the forefront.
There's plenty of evidence that animals in zoos are little more than studies in suffering - often even when times are comparatively good. When times are not so good, that suffering, as in Venezuela, becomes even more acute.