Charles Darwin: The Evolution of an Idea

A Life in Science

From a young naturalist collecting beetles to the recluse of Down House who revolutionized our understanding of nature.

1809

Born in Shrewsbury

Charles Robert Darwin is born on February 12 at The Mount, Shrewsbury. He is the fifth child of Robert and Susannah Darwin. Born into a wealthy family of doctors and industrialists (the Wedgwoods).

1831

The Offer of a Lifetime

After giving up on medical school in Edinburgh and studying for the clergy at Cambridge (where he preferred beetle collecting), Darwin is recommended by his mentor John Henslow for a position as a naturalist aboard the HMS Beagle.

1831-36

sailing The Voyage of the Beagle

A five-year circumnavigation of the globe. This journey laid the foundation for his life's work. (See the "Voyage" tab for details).

1839

Marriage & Illness

Marries his cousin, Emma Wedgwood. They move to London, then to Down House in Kent (1842). Darwin begins to suffer from a mysterious chronic illness that plagues him for the rest of his life, often keeping him confined to his home.

1859

Publication of 'The Origin'

After 20 years of gathering evidence and a rush triggered by Alfred Russel Wallace's similar findings, Darwin publishes On the Origin of Species. It sells out immediately and sparks a worldwide debate.

1882

Death and Burial

Darwin dies at Down House on April 19. Despite his wish to be buried locally, the scientific community insists on a state funeral. He is buried in Westminster Abbey, near Isaac Newton.

Natural Selection

"I have called this principle... by which each slight variation, if useful, is preserved, by the term of Natural Selection."

fingerprint

1. Variation

Every population has differences.

Hover to reveal

Inherited Traits

Individuals in a species are not identical. They vary in size, color, speed, etc. Crucially, many of these traits are passed down from parents to offspring.

groups

2. Competition

The struggle for existence.

Hover to reveal

Overproduction

Organisms produce more offspring than the environment can support. Resources (food, space) are limited, leading to intense competition for survival.

check_circle

3. Selection

Survival of the "Fittest".

Hover to reveal

Adaptation

Individuals with variations best suited to their environment are more likely to survive and reproduce, passing those useful traits to the next generation.

schedule

4. Time

Change over generations.

Hover to reveal

Evolution

Over many generations, these small changes accumulate. Eventually, the population becomes distinct enough to be considered a new species.

menu_book The Evidence

The Finches

Darwin observed 13 different species of finch on the Galapagos. Their beaks were perfectly adapted to their specific island's food source (seeds, insects, cactus).

Fossils

In Argentina, he found fossils of giant extinct mammals (like the Megatherium, a giant sloth) that looked like giant versions of living local species, suggesting a link through time.

Island Isolation

Vice-Governor Lawson told Darwin he could tell which island a tortoise came from by its shell. This hint about geographic isolation driving change was crucial.

Key Publications

On the Origin of Species (1859)

The foundation of evolutionary biology. Argued for natural selection as the mechanism for evolution.

The Descent of Man (1871)

Applied evolutionary theory to human evolution, detailing sexual selection and our shared ancestry with apes.

The Voyage of the Beagle (1839)

A vivid travel memoir and scientific journal that established his reputation as a naturalist and author.

public

A Scientific Revolution

Darwin's work didn't just change biology; it altered how humanity views itself. We were no longer separate from nature, but a part of it, connected to every living thing by a shared ancestry.

genetics

Genetics

Mendel's later work on genetics provided the mechanism Darwin was missing, creating the "Modern Synthesis".

medication

Medicine

Understanding evolution is crucial for fighting antibiotic resistance and understanding viral mutations.

The Predictive Power of Evolution

"Good heavens what a proboscis!"

Darwin predicted that a Madagascan orchid with a 30cm nectar spur must have a moth with a 30cm tongue to pollinate it. He was ridiculed, but 21 years after his death, the Xanthopan morganii praedicta moth was discovered, proving him right.

A Life in Science

Born in Shrewsbury

The Offer of a Lifetime

sailing The Voyage of the Beagle

Marriage & Illness

Publication of 'The Origin'

Death and Burial

explore Voyage Log

Natural Selection

1. Variation

Inherited Traits

2. Competition

Overproduction

3. Selection

Adaptation

4. Time

Evolution

menu_book The Evidence

The Finches

Fossils

Island Isolation

Key Publications

On the Origin of Species (1859)

The Descent of Man (1871)

The Voyage of the Beagle (1839)

A Scientific Revolution

Genetics

Medicine

The Predictive Power of Evolution