The animal in a symbiotic relationship with yucca is the yucca moth.

Here's how their relationship works:

* The yucca moth relies on the yucca for food and shelter. The female moth lays her eggs inside the yucca flower.

* The yucca relies on the yucca moth for pollination. The female moth collects pollen from the yucca flower and carefully transfers it to the stigma of another flower as she lays her eggs. This ensures the yucca plant can reproduce.

This is a classic example of mutualism, where both organisms benefit from the relationship.