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Wilson was campaigning to stop the decline in biodiversity.
One of the world's leading naturalists, Edward Wilson, died at the age of 92.
Wilson was the natural heir to Charles Darwin and was an award-winning Biologist and Professor at Harvard and Duke universities.
He studied ants and worked to stop the rapid decline in biodiversity.
The EO Wilson Biodiversity Foundation said that he died on Sunday.
The foundation said a tribute to his life would be planned in 2022.
Paula Ehrlich said that Ed's holy grail was the pursuit of knowledge.
She said that his scientific focus and poetic voice transformed our way of understanding ourselves and our planet.
EO Wilson said he developed an interest in the natural world from a young age. After a fish's fin cut his eye while fishing, he was blind in one eye and had to focus on smaller creatures.
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Newsnight's Evan Davis talked to Edward Wilson.
The first colony of imported ants in the US was discovered at the age of 13 by him.
He studied at the University of Alabama, and then earned a doctorate from Harvard.
He discovered more than 400 species of ants, and proved that ants usepheromone excretions to communicate.
Wilson studied ants in other organisms.
His most controversial book was Sociobiology: The New Synthesis, which argued that all human behavior was a product of genetics. He was accused of racism and sexism by some.
His 1978 book On Human Nature, which won a Pulitzer Prize, elaborated on the link between biology and human behavior.
He wrote a novel about an Alabama boy trying to save marshlands.
Wilson once said that destroying a rainforest for economic gain was like burning a Renaissance painting to cook a meal.
He believed that science and religion should come together to save the creation and that he had written a series of letters to an imaginary Baptist.
Wilson was the brains behind the launch of the Encyclopaedia of Life, a database of 1.9 million species.
It's called conservativism
There is a biodiversity.
The environment.
The United States.
