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Contemporary

Galápagos: Where Evolution Set Up Its Laboratory

Encounter the unique life forms and evidence of evolution on Darwin's islands

Published in 183538 min read
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formation origins

Birth of Volcanic Islands: 3.5 Million Years of Geological Drama

The Galápagos Archipelago consists of 19 major islands and dozens of smaller islets in the Pacific Ocean 906 km west of the equator. When Charles Darwin visited here aboard H.M.S. Beagle in 1835, he noticed differently shaped finch beaks on separate islands and found the clue to the theory of evolution. The oldest island, Española in the east, is 3.5 million years old, while Fernandina in the west, still volcanically active, was born only 1 million years ago.
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ecosystem life

World of Endemic Species: Living Evidence of Evolution

Galápagos shows cases where species from the same ancestors independently evolved to match the environment of each island. Of 14 finch species, each lives on a different island, and the beak evolved into various shapes based on the feeding method. The Galápagos giant tortoise has different shell shapes by island and is the most famous endemic species. The marine iguana is the world's only sea lizard that swims and eats seaweed, and the Galápagos penguin is the only penguin species that can live at the equator.

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Galapagos Ecosystem Explorer

Click each zone to explore its biodiversity

Canopy Cross-Section

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climate environment

What Darwin Saw: Evolution Decoded Through Finch Beaks

Darwin found the evidence of evolution in Galápagos. Large ground finch (large, stout beak): cracks seeds and large cactus fruits. Sharp-beaked ground finch: draws blood from the back of other birds. Cactus finch: gathers nectar from cactus flowers. Woodpecker finch (picks and scrapes): uses a thorn to dig out insects from wood. These diverse finch species are living proof of evolution through natural selection. In 1859, with the publication of On the Origin of Species, he fundamentally changed humanity's view of nature.
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human nature

Ecological Crisis and Invasive Species

About 200 years after Darwin's visit, Galápagos faces a serious crisis. The #1 threat is invasive species. Goats, pigs, dogs, and cats brought by humans eat the eggs of endemic species, destroy their habitats, and spread disease. Because of the goats, the medium tree finch faced the risk of losing specimens created by 500,000 years of evolution within 15 years. Some areas are being restored through strict laws and removal programs, but about 38% of all Galápagos animals are under threat.
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future conservation

Present of Conservation and Scientific Research

Galápagos was registered as a UNESCO World Heritage Site in 1978. The Ecuadorian government protects 97% of the land area outside inhabited areas as national parks. The Charles Darwin Research Station breeds the Galápagos giant tortoise through artificial reproduction programs. Research in Galápagos plays a central role in proving Darwin's theory of evolution in real time.

Galápagos Conservation Status Dashboard

Endemic Species Count

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Current

~9,000 endemic species

Target/Threshold

Preserve ecosystem found nowhere else on Earth

Endemism rates: land mammals 100%, reptiles 97%, land birds 80% — among the highest on Earth

Over 560 invasive species now threaten endemic life. In the past 30 years, eradication programs have successfully eliminated 200+ invasive species.

Marine Protected Area

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Current

198,000 km² (expanded 2021)

Target/Threshold

Includes Cordillera del Coco — connects Galápagos-Cocos marine corridor

In 2021 Ecuador's president expanded the MPA by 60,000 km² — making it one of the world's largest marine reserves

This zone is a major migratory route for tuna, sharks, sea turtles, and whale sharks. The expansion officially blocks access for illegal fishing vessels.

Invasive Species Threat

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Current

560+ invasive species confirmed (387 plants, 173 animals)

Target/Threshold

Goal: Zero key invasives on major islands

'Project Isabela' (2004-2006) removed 250,000+ goats from Isabela Island using helicopters and marksmen — the largest wildlife eradication in history

After goat removal, vegetation on Isabela Island recovered rapidly and Galápagos tortoise populations began growing again. However, urban invasives like rats, cats, and pigeons remain ongoing challenges.

Endangered Species Status

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Current

Galápagos tortoise Vulnerable (VU) · sea lion Endangered (EN)

Target/Threshold

Downgrade on IUCN Red List (reduce threat level)

The Pinta Island tortoise (Lonesome George) officially extinct after the last individual died in 2012. Some Galápagos tortoise subspecies are now recovering through captive breeding programs.

270,000-300,000 visitors arrive annually. Strict visitor zone limits, mandatory certified guides, and ecological taxes protect core habitats — but tourism pressure remains a major threat factor.

Stage 1: FactsQuestion 1 of 3

What year did Darwin visit the Galápagos Islands?

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