Shown are representatives of all major lineages of eukaryotic organisms, color coded for occurrence of multicellularity. Solid black circles indicate major lineages composed entirely of unicellular ...

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 ...

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.

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.

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 ...

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 ...

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 ...

For over 3 billion years, single-celled organisms were the only living creatures in the primordial soup of the earth’s oceans. Then around 600 million years ago, the first multicellular animals, ...

Researchers from the UPV/EHU-University of the Basque Country and CEFAS have discovered a parasite present in seawater and which belongs to a primitive lineage; they have named it Txikispora ...

LA JOLLA, CA-One of the most pivotal steps in evolution-the transition from unicellular to multicellular organisms-may not have required as much retooling as commonly believed, found a globe-spanning ...