Panorama: Galápagos Sea Lions

Title Info
Scientific name Zalophus wollebaeki
Taxonomic group Otariidae
Source Dan L. Perlman
Ecosystems Wetlands, aquatic
Wetlands and aquatic Oceans, seas
Selection and adaptations Selection
Behavior Territorial; Mating; Social
Animals Mammals
Lessons Panoramas
Date March 15, 2010
Location Española Island,Galápagos Islands,Ecuador,South America
Panorama of sea lions on beach, Galápagos Islands
Related materials: Panoramas;Galápagos
You may want to discuss with your students different types of mating systems, one of which is displayed in this panorama. These sea lions, like deer, zebras, and lions, have a system in which a single male (or occasionally more than one) monopolizes the mating efforts of a large number of females. In contrast, the frigatebirds (seen in another panorama) have a lek mating system, in which a number of males gather together and display to attract females, who can pick and choose among the males for a partner. How do these two mating systems differ from the perspectives of the females and the males?

Panorama Viewing: Click the "View Panorama" button to see an interactive panorama. Click and drag your mouse in any direction to view other parts of the scene; press the Shift key to zoom in to see details and press Ctrl to zoom out.
We recommend using the Deval VR viewer for seeing panoramas that do NOT have sound and the QuickTime viewer for panoramas WITH sound.

The Galápagos Islands are home to many endemic species (species that are found nowhere else in the world), such as the well-known Darwin's finches and giant tortoises. Other species, such as these Galápagos sea lions, Zalophus wollebaeki, are nearly endemic and only found in small numbers outside of the archipelago. These impressive mammals live in harems, with a single male "beach-master" attempting to monopolize the reproductive efforts of numerous females.