Humans, Zebra Snails and Communists
by pooping on their faces
The word researchers is a common plural noun. It requires no apostrophe.The researchers studied medical problems.If the word researchers has a possession or belonging, it needs an apostrophe.The researchers' study identified three mutant genes.I read the researchers' work with great interest.
Vampire bats rarely attack humans, because they prefer to get their meal from small sleeping mammals. There are three different species of vampire bats.
In each of the three types, researchers found different but measurable impairments on objective testing of neurological function.
human activities appear to have eliminated two or three species per decade, about double the naturalextinction rate.
The three species of monotremes are:platypusshort-beaked echidnalong-beaked echidna, of which there are three sub-species
Head lice are one of three species of lice that parasitize humans. The others are body lice and pubic lice. All three feed on blood.
Compare and contrast the three Nile Valley civilizations?
Compare three brands of electronic medical records
There are three species of zebra. The three species are: the plains zebra, the grevy's zebra, and the mountain zebra.