6th-elephant-seals_SNOUT

Southern Elephant Seals

  • Habitat: Freezing ocean waters of Antarctica.

  • Size: Can grow as long as a car and weigh as much as two cars combined.

  • Name Origin: Derived from the males’ large size and their trunk-like nose, known as a proboscis.

  • Female Characteristics: Smaller than males, do not have a proboscis.

Physical Adaptations

  • Insulation: Thick layer of blubber keeps them warm in icy conditions.

  • Swimming: Clumsy on land but agile in water, capable of incredible dives.

  • Diving Depth: Can dive between 1,000 to 4,000 feet to hunt for squid, octopus, and fish.

  • Underwater Duration: Can remain underwater for 20 minutes or more; longest recorded dive is two hours.

  • Breathing: Surfaces briefly for a few minutes to breathe before diving again.

Social Behavior

  • Colonies: Gather on beaches in groups called colonies for breeding and giving birth.

  • Males: Arrive first to establish dominance, often battling for the right to large harems of females.

  • Dominance Displays: Males inflate their snouts and bellow; confrontations often end without serious injury, though fights can occur.

Reproductive Behavior

  • Birthing: Females give birth to a single pup after a gestation of approximately one year.

  • Newborn Pup Weight: Weigh about 90 pounds at birth.

  • Nursing: Mothers nurse pups for a little over three weeks before breeding again and returning to sea.

  • Pup Weight Increase: Pup weighs over 200 pounds after weaning and must fend for itself.

Molting

  • Purpose: Elephant seals come ashore to molt, shedding old skin and fur to allow new skin and fur to grow.

Related Species

  • Northern Elephant Seal: Found in the Pacific Ocean from Mexico's Baja California to Alaska.

  • Conservation Status: Both species were nearly hunted to extinction but have significantly recovered due to legal protections.