Consider the nematode ...

Consider the nematode roundworm, the most abundant of all animals. Four out of five animals on Earth are nematode worms — if all solid materials except nematode worms were to be eliminated, you could still see the ghostly outline of most of it in nematode worms.
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 E. O. Wilson

Quotes from the same author

The second half of the 20th century was a golden age of molecular biology, and it was one of the golden ages of the history of science. Molecular biology was so successful and made such a powerful alliance with the medical scientists that the two together just flourished. And they continue to flourish.
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 E. O. Wilson
The two major challenges for the 21st century are to improve the economic situation of the majority and save as much of the planet as we can.
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 E. O. Wilson
Each of these [bacterial] species are masterpieces of evolution. Each has persisted for thousands to millions of years. Each is exquisitely adapted to the environment in which it lives, interlocked with other species to form ecosystems upon which our own lives depend in ways we have not begun even to imagine.
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 E. O. Wilson
In the attempt to make scientific discoveries, every problem is an opportunity — and the more difficult the problem, the greater will be the importance of its solution.
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 E. O. Wilson
Far more important throughout the rest of science is the ability to form concepts, during which the researcher conjures images and processes by intuition.
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 E. O. Wilson