For over a century, scientists have wrestled with one of biology’s most fundamental mysteries: how the first animals evolved.

Researchers have identified a previously unknown species of unicellular organism in seawater collected near Hachijojima Island. The newly discovered species, named Viscidocauda repens, belongs to the ...

Understanding the origin of the building block of all animal and plant life may lead to more insights about life on Earth and ...

Researchers at the University of Tsukuba have identified a previously unknown species of unicellular organism in seawater ...

Modern single-celled holozoa include the most basal living animals and the fossil discovered shows an ... into separate regions within a multicellular mass—existed in unicellular organisms a billion ...

Very little is known about choanoflagellates, and there are interesting biological phenomena that we can only gain insight into if we understand their ecology,” says HHMI scholar and University of ...

The popular California-based fast food burger chain is giving some of its drinks and ketchup a new taste after the FDA banned ...

animals, or fungi. However, not all protozoa are decomposers. The giant amoeba is an example of one that is. Not all protists are decomposers, either, unless they feed on dead matter. Protists ...

Before your visit, discover some of Earth's most captivating creatures found at the San Diego Zoo Safari Park, like the ...