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Galápagos Islands

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The Galápagos Islands are a volcanic archipelago in the eastern Pacific Ocean.

Galapagos in Ecuador (real location)
Galapagos in Ecuador (real location)

They are located near the equator, west of the South American mainland. These islands belong to the Republic of Ecuador and form the Galápagos Province. The islands are world-famous for their endemic species. Endemic species are plants and animals that live nowhere else on Earth. This unique biodiversity inspired Charles Darwin in the 1830s. His studies there helped him develop the theory of evolution by natural selection. Today, much of the area is protected within the Galápagos National Park and Marine Reserve.

The islands were created by intense volcanic activity. This process has continued for at least 20 million years. The archipelago sits atop the Galápagos hotspot. A hotspot is a place where a mantle plume melts the Earth's crust from below. This melting creates magma that rises to form volcanoes. The islands are located on the Nazca plate. This tectonic plate moves east and southeast at a rate of 51 kilometers per million years. As the plate moves, it carries older islands away from the hotspot. This makes the western islands younger and the eastern islands older.

Galapagos Islands astronaut photo from ISS 2020
Galapagos Islands astronaut photo from ISS 2020

Volcanism in the archipelago has several distinct characteristics. The volcanoes are often tall and rounded. This shape comes from a pattern of radial and circumferential fissures. Radial fissures run along the flanks of the volcano. Circumferential fissures run near the caldera summits. These circular fissures create stacks of short lava flows. The western volcanoes are generally taller and younger. They often have well-developed calderas, which are large crater-like depressions. They are mostly made of tholeiitic basalt. The eastern islands are shorter and older. They lack large calderas and have a more diverse chemical composition.

Galapagos-satellite-esislandnames
Galapagos-satellite-esislandnames

History shows how humans have interacted with these remote islands. There is no firm evidence that Polynesians or Indigenous peoples lived there before 1535. That was the year Bishop Tomás de Berlanga discovered them by accident. For a long time, the Spanish Empire ignored the islands. However, pirates used the archipelago as a base during the Golden Age of Piracy. They used it to raid Spanish ships near the Peruvian coast. These pirates introduced goats and black and brown rats. These invasive species caused great damage to the local ecosystems.

Insulae de los Galopegos
Insulae de los Galopegos

Ecuador officially claimed the islands on February 12, 1832. José de Villamil, the founder of the Ecuadorian Navy, led the effort to colonize them. His work helped replace English names with Spanish ones. The islands have held many different names over time. They were once called the Enchanted Isles or the Colon Archipelago. The name "Galápagos" comes from the Spanish word for turtle. This refers to the giant tortoises that were very common when explorers arrived.

The Galápagos tortoise or Galápagos giant tortoise (Chelonoidis nigra) - Santa Cruz Island
The Galápagos tortoise or Galápagos giant tortoise (Chelonoidis nigra) - Santa Cruz Island

The scale of the archipelago is quite large. It consists of 18 main islands and 107 smaller rocks or islets. Isabela is the largest island. It makes up nearly three-quarters of the total land area. Volcán Wolf on Isabela is the highest point, reaching 1,707 meters above sea level. The islands are spread out over a vast distance. Darwin Island is the northernmost point, while Española is the southernmost. The islands sit at a complex geological location called the Galápagos triple junction.

Orthographic projection centred over the Galapagos
Orthographic projection centred over the Galapagos

Modern life on the islands focuses on protecting the environment. Ecotourism is a major part of the local economy. This type of tourism aims to protect nature while people visit. About 300,000 visitors arrive each year. To support this, the islands' airport was modernized in the 2010s. The expansion used recycled materials. The airport now runs entirely on renewable energy sources. This helps maintain the delicate balance of the islands' unique natural systems.

Vista de Puerto Ayora
Vista de Puerto Ayora
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🖼️ Images & Media (42)
File:Galapagos in Ecuador (real location).svg
Galapagos in Ecuador (real location).svg
File:Galapagos Islands astronaut photo from ISS 2020.jpg
Galapagos Islands astronaut photo from...
File:Galapagos SPOT 1178.jpg
Galapagos SPOT 1178.jpg
File:Orthographic projection centred over the Galapagos.png
Orthographic projection centred over the...
Tour of the Galapagos.OGG
Journey to Galapagos.OGG
File:Galapagos-satellite-esislandnames.jpg
Galapagos-satellite-esislandnames.jpg
File:Alvaro Sevilla Design Isla Santa Cruz Galapagos foto tomada desde el avión.jpg
Alvaro Sevilla Design Isla Santa Cruz...
File:Floreana1.jpg
Floreana1.jpg
File:PtoVillamilMuro.jpg
PtoVillamilMuro.jpg
File:North Seymour Island in the Galapagos about to land on shore photo by Alvaro Sevilla Design.JPG
North Seymour Island in the Galapagos...
File:Galapagos2007--12--08-23-07.JPG
Galapagos2007--12--08-23-07.JPG

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