The long-necked yippa, dependent on trees for food, migrates to the edge of the southern tropical forest of Lemuria during the dry season.
The long-necked yippa, Altocephalus saddi is a long-necked, llama-like antilopine bovid from the tropical grasslands of Lemuria.
While other local herbivores like valuphants and snorkes feed on low-level vegetation, the upper layers of vegetation are exploited by the long-necked yippa, which can reach the leaves and young shoots of the savanna trees.