Galapagos Sea Lions

The Galapagos Sea Lions are famous for their playful behaviour, beach‑loving lifestyle, and remarkable sociability, often lounging on benches, docks, and beaches right beside people.  They’re also known for their large breeding colonies and impressive underwater agility.  They gather in large groups on sandy beaches—sometimes hundreds at a time—making them among the easiest animals to observe up close.  San Cristóbal hosts the largest colonies.  With whiskered faces, big eyes, and expressive movements, they’re among the most photogenic animals in the Galápagos.  Despite being clumsy on land, they’re incredibly fast and graceful swimmers, capable of sharp turns and long dives—up to 200 meters and 20+ minutes.  They exist nowhere else on Earth except the Galápagos (and a small population on Isla de la Plata), making them a signature species of the islands.

Zalophus wollebaeki is the scientific name for the Galápagos sea lion, a member of the Otariidae (eared seal) family.  They were first described in 1953 and are now recognized as a distinct species rather than a subspecies of the California sea lion.

Key Characteristics

• • Smallest sea lion species
  • Males: 1.5–2.5 m long, 50–400 kg
  • Females: smaller, more slender
  • Males develop a sagittal crest (forehead bump) at maturity
  • Agile swimmers, but clumsy on land
  • Coat colour shifts from dark brown/black when wet to brown or gray when dry

Behavior & Ecology

• • Highly social, forming colonies on beaches and rocky shores
  • The diet is mainly fish
  • Males (bulls) defend territories and harems
  • Females raise a single pup, often for up to 3 years

Conservation

• • Listed as Endangered
  • Threats listed are human disturbance, pollution, and entanglement.

All photos here were taken with a Nikon D850 in an Ikelite housing using Ikelite DS161 strobes or Bigblue video lights & UltraLight Camera Solutions arms & accessories.