Figure 2.

Movement patterns by mammalian order. The fraction of species with known movement patterns that have breeding, refuge, and tracking migrations, an unclear motivation for migration, and no migratory behavior (colors as in Figure 1). Numbers in parentheses indicate the number of species with known movement patterns in each order. The order Cetartiodactyla has been split into Cetacea and Artiodactyla here. Silhouettes are all Public Domain except for: Microbiotheria, Dasyuromorphia, and Didelphimorphia (all Sarah Werning) and Monotremata (Nobu Tamura, vectorized by T. Michael Keesey), which are all CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/)