How many animal kingdoms are there?

In biology, kingdom (Latin: regnum, plural regna) is the second highest taxonomic rank, just below domain. Kingdoms are divided into smaller groups called phyla. read more

Every living creature on Earth belongs to a kingdom. Scientists debate how many kingdoms there are, but most agree there are five. Here is how the five kingdoms are organized. read more

A: Six kingdoms of life exist: archaebacteria, eubacteria, protists, fungi, plants and animals. In the past, the two bacterial kingdoms were placed into one kingdom, but the two types of bacteria were found to be so different that they warranted separate kingdoms. read more