The survival story of Guadalupe fur seals
Learn about the Guadalupe fur seals of Guadalupe Island, off the northwestern coast of Baja California, Mexico.
Contunico © ZDF Studios GmbH, Mainz
-
Encyclopædia Britannica, Inc.For centuries, people believed that all colors were a mixture of black and white. How did we learn otherwise?
-
Contunico © ZDF Studios GmbH, MainzOverview of savory.
-
Encyclopædia Britannica, Inc.Explanation of the periodic table.
-
Encyclopædia Britannica, Inc.It's a common misconception that no sharks ever sleep.Media Editor: Miranda Chabot
-
Encyclopædia Britannica, Inc.Northern fur seals (Callorhinus ursinus) with pups.
-
Contunico © ZDF Studios GmbH, MainzA jackal looking for prey in a colony of South African (or Cape) fur seals.
-
Contunico © ZDF Studios GmbH, MainzWhite sharks have been neither bred nor raised in captivity, and, thus, what biologists know about their habits and natural history has come only from direct observation in the wild.
Transcript
The island of Guadaloupe - a small, isolated Pacific island about 250 kilometers off the Mexican coast. The only visitors are fishermen or tourists, who come to see the great white sharks. For the great white shark, Guadaloupe is a preferred hunting ground. Not least because of one very special resident, the Guadaloupe fur seal. Their fur has a particularly dense and soft undercoat. It made them prime targets for merciless hunters looking to make money in the fur trade. It almost wiped them out. But tucked away in the security of the rugged rocky coastline, a few managed to survive. Today, their populations are gradually recovering.
Fur seals are phenomenal swimmers. In evolutionary terms, they were once land-predators that took to a life in the water, where they feed on fish, squid and crustaceans. Seals have a torpedo-shaped body. The flattened head joins straight onto the body, while the tail is just like a leftover at the end. Arms and legs have become part of the body, right up to the elbow and knee joints. Only the lower arms and legs protrude from the body. But all of these developments make the seals more aerodynamic, the perfect shape for phenomenal divers and swimmers. Guadeloupe fur seals have incredibly large eyes, which allow them to have excellent eyesight below water. Due to their tiny distribution, they are amongst the rarest fur seals in the world.
And today, only one species is still allowed to hunt them, the great white shark. But strangely, the seals don’t seem to have a great deal of respect for this predator that is so feared by humans. Presumably, the sharks only manage to get the better of the agile seals by launching surprise attacks.
Today, the island of Guadeloupe is a strictly protected nature reserve. The Mexican Navy patrols the island and any visitors need a special permit. For over 50 years, the fur seals of Guadeloupe were thought to be extinct. But today, there is renewed hope for their survival.
Fur seals are phenomenal swimmers. In evolutionary terms, they were once land-predators that took to a life in the water, where they feed on fish, squid and crustaceans. Seals have a torpedo-shaped body. The flattened head joins straight onto the body, while the tail is just like a leftover at the end. Arms and legs have become part of the body, right up to the elbow and knee joints. Only the lower arms and legs protrude from the body. But all of these developments make the seals more aerodynamic, the perfect shape for phenomenal divers and swimmers. Guadeloupe fur seals have incredibly large eyes, which allow them to have excellent eyesight below water. Due to their tiny distribution, they are amongst the rarest fur seals in the world.
And today, only one species is still allowed to hunt them, the great white shark. But strangely, the seals don’t seem to have a great deal of respect for this predator that is so feared by humans. Presumably, the sharks only manage to get the better of the agile seals by launching surprise attacks.
Today, the island of Guadeloupe is a strictly protected nature reserve. The Mexican Navy patrols the island and any visitors need a special permit. For over 50 years, the fur seals of Guadeloupe were thought to be extinct. But today, there is renewed hope for their survival.