Galapagos Sea Lions and Fur Seals
Sea Lions
and Fur Seals
are fin-footed mammals with amazing abilities in water. Their speed and agility in
water contrasts to their clumsy waddling on land. Seals agility in the water makes
it possible for them to maneuver safely in pounding surf and along jagged rocks.
These warm-blooded mammals have adapted over the years to life in the water.
Millions of years ago their ancestors were land creatures who hunted the coastline for
food. Their adaptation, unlike other marine mammals much as whales and dolphins, did
not make the seals completely independent of the land as they spend a portion of their
life lazing along the coast.
With their adaptation and graceful ability in
water it seems incredible that baby seals need to learn to swim. Seals are born on
land and are taught to swim by their mothers.
The young pup is picked up by the back
of the neck and is carried into the water by its mother. At first the pup struggles
against the surf, but by the time it is a few months old it easily breaks through the surf
without problem.
Sea Lions
The 'Unofficial Welcoming Committee' of the Galapagos Islands is the Sea
Lion. Their playful inquisitive nature, speed, agility on land, and bark
quickly make them an island favorite. Sea Lions live in large Colonies. Adult males known as Bulls
are the head of the Colony. Bulls grow to be up to 7 ft (2 m)
in length and 800 lbs (363 kg). As males grow larger they fight to win dominance and
for a territory including a Harem of between 5 and 25 Cows.
Dominant Bulls will fight off any intruders entering the territory.
Each Cow
in the Harem has a single Pup born a year after
conception. The Pups have a strong bond with their mother. The Cow will nurture a Pup for up to three years. In that time
the Cow and the Pup will recognize each other's bark from the rest of
the Colony. The mother's will take the young pups with them into the water
while nursing. When the Pup is 2 - 3 weeks old the Cow will mate
again.
Within the Colony Sea Lion Pups live together in a Rookery.
Pups can be seen together napping, playing, and feeding. It is common to see
one Cow 'baby-sitting' a group of Pups while the other cows go off to
feed.
Galapagos Sea Lions are especially vulnerable to human activity. Their
inquisitive and social nature makes them more likely to approach areas inhabited by
humans, to come in contact with human waste and with fishing nets and hooks.
Sea Lions can be seen all over the islands. Snorkeling and kayaking with the
playful pups is often the highlight of a visit to the Galapagos.
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