For many years, scientists believed that life in Utah’s Great Salt Lake was extremely limited. Its caustic, hyper-saline ...

Life’s leap from single-celled to multicellular organisms marks a pivotal moment in evolutionary history. This transformation laid the foundation for the complex life forms we see today. By studying ...

Dinosaurs ruled the planet between 230 to 66 million years ago, although many other life forms had evolved well before their existence. Moreover, some of these living creatures still exist today.

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

As organisms develop from embryos, groups of cells migrate and reshape themselves to form all manner of complex tissues.

In a groundbreaking experiment, researchers have brought a mouse to life with the help of a single-celled organism that existed long before any multicellular animals walked the earth. Genetic research ...

A new study shows that multicelled organisms like the metazoan daphnia (pictured) require a tenfold increase in energy compared with protists for their growth, maintenance and survival. The high cost ...

Images of the multicellular development of the ichthyosporean Chromosphaera perkinsii, a close cousin of animals. In red, the membranes and in blue the nuclei with their DNA. The image was obtained ...

Oxygen is so essential for animals that every multicellular species we’ve ever studied has the ability to use oxygen to ...

Tiny soil animals survive harsh desert conditions, revealing hidden life and climate driven survival strategies underground.