🔬 Discovery

Darwin's observations in the Galápagos

Observaciones de Darwin en las Galápagos

Date
1835 · confidence high
Place
Galápagos Islands, Ecuador
Credited to
Charles Darwin
Field
Life & health

⚠️ Disputed: the sources disagree.

What was discovered

Over five weeks, Darwin collected birds and reptiles from several islands and noted that mockingbirds and tortoises varied from island to island. Those differences, later studied by Gould and others, fed his idea of the transmutation of species.

The story that 'Darwin's finches' directly inspired evolution is a later simplification; Darwin did not label birds by island and it was John Gould who identified them in 1837 (Sulloway, 1982).

What it led to

  • Study of the adaptive radiation of the finches
  • Development of the theory of evolution by natural selection
  • Turning the Galápagos into a natural laboratory of evolutionary biology
🕸️ View in the graph

Made possible

Links

Sources✓ verified 2026-11-04