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September 11, 2026Short & citedBlog
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Field Notes • Ecology

Galápagos Islands

The Galápagos Islands are a volcanic archipelago in the eastern Pacific Ocean, about 1,000 km west of mainland Ecuador, and form an Ecuadorian province.

Updated September 11, 20261 min readCited sources

The Galápagos Islands are a volcanic archipelago in the eastern Pacific Ocean, about 1,000 km west of Ecuador. They are famous for their unique wildlife and for inspiring Charles Darwin's theory of evolution.

What it is

The Galápagos Islands are a province of Ecuador, comprising 19 islands and many smaller islets and rocks. They straddle the Equator and are located roughly 1,000 km west of mainland Ecuador. The largest island is Isabela, and the population is about 33,000 as of 2020.

Why it matters

The islands are internationally known for their high level of endemic species, including giant tortoises, marine iguanas, and Galápagos penguins. Charles Darwin visited in 1835, and his observations here contributed to his theory of evolution by natural selection, making the archipelago a key site for science and conservation.

Key details

The Galápagos are designated a UNESCO World Heritage Site and a biosphere reserve. They are protected for biodiversity, scientific research, and ecotourism. The surrounding marine area is also part of the reserve, and the islands remain a major destination for nature lovers and researchers.

In short

  • Volcanic archipelago in eastern Pacific, part of Ecuador.
  • Famous for endemic species like giant tortoises.
  • Charles Darwin's 1835 visit influenced his theory of evolution.
  • Protected as UNESCO World Heritage Site and biosphere reserve.
Canadian angle

Canadian readers may know the Galápagos through school science, evolution, biodiversity, and conservation topics; the islands are also a major international ecotourism destination.

Quick questions

Where are the Galápagos Islands?
They are in the eastern Pacific Ocean, about 1,000 km west of mainland Ecuador, and they straddle the Equator.
What animals live on the Galápagos Islands?
Notable animals include giant tortoises, marine iguanas, Galápagos penguins, sea lions, and many endemic birds and reptiles.
Why are the Galápagos Islands important?
They are important for biodiversity, conservation, and science because many species are endemic and they helped inspire Darwin’s theory of evolution.

Sources

  1. Encyclopaedia Britannica — https://www.britannica.com/place/Galapagos-Islands
    Supports: Location, island count, Ecuadorian status, Darwin visit, and significance of wildlife
  2. UNESCO World Heritage Centre — https://whc.unesco.org/en/list/1/
    Supports: World Heritage designation, location, and archipelago composition
  3. UNESCO — https://www.unesco.org/en/mab/galapagos
    Supports: Biosphere reserve status and archipelago composition
  4. National Geographic Education — https://education.nationalgeographic.org/resource/galapagos-islands/
    Supports: Location, island count, and biodiversity
  5. Wikipedia — https://en.wikipedia.org/wiki/Gal%C3%A1pagos_Islands
    Supports: Approximate population, location, and Darwin-related historical context