How is it possible to move in the desired direction without a brain or nervous system? Single-celled organisms apparently manage this feat without any problems: for example, they can swim towards food ...

Learn how one-celled organisms, or single-celled organisms, helped build complex life.

Just as the human body serves as a habitat for bacteria and other microbes, diverse, tiny organisms known as protists host their own microbiomes. "We know there are many symbionts in the world, but it ...

Maddy has a degree in biochemistry from the University of York and specializes in reporting on health, medicine, and genetics. Maddy has a degree in biochemistry from the University of York and ...

Stentor is a trumpet-shaped, single-celled organism that can grow up to 2 mm long. In its native habitat of ponds or lakes, Stento r attaches its slender end (called the holdfast) to leaves or twigs ...

The tree of life has three branches: archaea, bacteria, and eukaryotes. Eukaryotes include complex organisms, including plants, animals, and fungi. Eukaryotic cells contain many organelles, little ...

Light is a universal stimulus that influences all living things. Cycles of light and dark help set the biological clocks for ...

Since the dawn of human history, we have always wondered how we got here. What processes took place that brought us from single-celled organisms into the living, thinking human beings that we are ...

How do living organisms that lack a brain or nerve cells make decisions? In a new study published in May 2021 in the Proceedings of the National Academy of Sciences of the United States of America ...