What animal depends on the gorilla for survival?

There isn't a single animal that solely depends on the gorilla for survival. Gorillas are primarily herbivores and don't directly provide food or shelter for other species in a way that would make them indispensable.

However, gorillas do indirectly impact the ecosystem in ways that benefit other species:

* Habitat: Gorillas create and maintain clearings in forests, which can create space for other animals to thrive.

* Seed dispersal: As they move through the forest, gorillas can spread seeds from the fruits they eat, helping to regenerate plant life.

* Nutrient cycling: Gorilla droppings contribute to soil fertility, which benefits other plants and animals.

Some small insects and microorganisms live on gorillas, but their survival isn't strictly dependent on the gorilla.

It's important to remember that the entire ecosystem benefits from the presence of gorillas, and their conservation is crucial for the wellbeing of many species.