News tagged with species

Related topics: climate change , extinction , plants , biodiversity , plos one

Do gut bacteria rule our minds?

It sounds like science fiction, but it seems that bacteria within us—which outnumber our own cells about 100-fold—may very well be affecting both our cravings and moods to get us to eat what they want, ...

Aug 15, 2014
popularity 4.8 / 5 (60) | comments 18

Species

In biology, a species is:

There are many definitions of what kind of unit a species is (or should be). A common definition is that of a group of organisms capable of interbreeding and producing fertile offspring, and separated from other such groups with which interbreeding does not (normally) happen. Other definitions may focus on similarity of DNA or morphology. Some species are further subdivided into subspecies, and here also there is no close agreement on the criteria to be used.

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