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Stories by Carl Zimmer

The Oldest Rocks on Earth

One team of scientists thinks ancient rocks discovered in northern Canada give us a window onto the planet's infancy and the birth of life itself. Another team thinks they're not that special

March 1, 2014 — Carl Zimmer
Ecosystems on the Brink

Ecosystems on the Brink

To keep jellyfish, fungi and other creatures from overtaking healthy habitats, scientists are exploring food webs and tipping points

October 3, 2012 — Carl Zimmer

Searching for Intelligence in Our Genes

IQ is easy to measure and reflects something real. But scientists hunting among our genes for the factors that shape intelligence are discovering they are more elusive than expected

October 1, 2008 — Carl Zimmer

Evolved for Cancer?

Natural selection lacks the power to erase cancer from our species and, some scientists argue, may even have provided tools that help tumors grow

July 1, 2008 — Carl Zimmer

What Is a Species?

To this day, scientists struggle with that question. A better definition can influence which animals make the endangered list

June 1, 2008 — Carl Zimmer

Evolved for Cancer?

Natural selection lacks the power to erase cancer from our species and, some scientists argue, may even have provided tools that help tumors grow

January 1, 2007 — Carl Zimmer

The Neurobiology of the Self

Biologists are beginning to tease out how the brain gives rise to a constant sense of being oneself

October 24, 2005 — Carl Zimmer