Bacterial multicellularity takes several phenotypically diverse forms and has independently evolved in different species. Simple bacterial multicellularity can rapidly evolve as a result of mutations ...

The transition from single-celled to multicellular organisms was one of the most significant developments in the history of life on Earth. Without it, all living things would still be microscopic and ...

One of the big evolutionary questions in life is how and why single cell organisms organized themselves to live in a group, thereby forming multicellular life forms. Scientists have answered at least ...

With the world's first complete sequencing of a brown algal genome, an international research team has made a big leap towards understanding the evolution of two key prerequisites for higher life on ...

For billions of years, single-celled creatures had the planet to themselves, floating through the oceans in solitary bliss. Some microorganisms attempted multicellular arrangements, forming small ...

If you know anything about deep history, you’ve doubtless heard something about the Cambrian Explosion, 542 million years ago (MYA), when all those trilobites showed up with their animal body plans.

Each cell of the human body contains two meters of DNA. The whole secret lies in the intricate three-dimensional arrangement ...

An interview with the developmental biologist Cassandra Extavour on the origins of multicellular organisms and the evolution of cooperation. The developmental biologist Cassandra Extavour sings ...

Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...

E. coli is arguably the most well-studied organism on Earth, but scientists have now discovered a new behavior that’s almost never seen in bacteria. The normally single-celled organisms have shown ...

University of Arizona Ph.D. students gathered in the Sonett Space Sciences building on Dec. 8 to present their research and discuss other scientists’ research related to the study of astrobiology.