No, oxygen didn't catalyze the swift blossoming of Earth's first multicellular organisms. The result defies a 70-year-old assumption about what caused an explosion of oceanic fauna hundreds of ...

"At some point it might not be beneficial anymore to stick around with your buddies. But if you don't, you die." ...

Earth life may not be so improbable ... is prevalent in the evolution of multicellularity because the first multicellular organisms were only a mutation away from being strictly unicellular." ...

To be the parent of all living things, LUCA didn't need to be the first organism on Earth — just the luckiest. Other scientists were even more skeptical of the claim that life originated with a ...

The first animals on Earth laid the foundation for the vast diversity of life we see today. Their evolution from simple, soft-bodied organisms to more complex creatures with specialized structures ...

Scientists have identified a new species of microscopic worms living in the ground below South African mines, isolated from fracture water gushing up from miles below the Earth's surface. It is the ...

The earliest animal likely used chemical signaling to evolve from a single cell to a multicellular organism, according to a study led ... one of the biggest transitions in the history of life on earth ...

The first signs of its presence on Earth have been ... for this type of organism. "Although C. perkinsii is a unicellular species, this behavior shows that multicellular coordination and ...

Snowflakes of yeast in a lab offer insights into how life on Earth transitioned from single-celled into multicellular organisms ... when single-celled creatures first banded together to become ...

During this period, called the "boring billion," the complexity of life remained minimal, dominated by single-celled organisms ... on Earth. Insights into the high energy demands of multicellular ...