: Compare the relative diversity of rare birds within different natural regions of the state. Why is this data compressed as a .rar or .zip?

Datasets like DS2711 are often massive because they contain complex geographic information (GIS). Scientists use compression formats like or .zip to:

Understanding DS2711: Mapping California’s Rare Bird Diversity

DS2710 – Rare Plant Richness DS2711 – Rare Bird ... - CA.gov