Ok, I am really confused regarding apostrophe with the s and the end of the word. I have looked through multiple sites only to see multiple viewpoints. And, on tests they test it differently. So, can anyone help me with the following problem:
The only evidence of the species survival before its rediscovery at the end of the century was an unconfirmed recording.
Would it be species' or species's ?
There is a lot of advice on the internet about how to use possessive S with names such as the following:
Per APA Style, the answer is that the possessive of a singular name is formed by adding an apostrophe and an s, even when the name ends in s (see p. 96 in the sixth edition of the Publication Manual). Therefore, in the example above, the correct usage would be “Adams’s (2013) work.” Although this presentation may look awkward to some writers, the rule for forming the possessive does not change just because the name ends in s.
However, it is important to note the following exception to this rule: You should use an apostrophe only with the singular form of names ending in unpronounced s (see p. 97 in the Publication Manual). Therefore, if you were writing a paper about the philosopher Descartes, to form the possessive with his name, you would need to just add an apostrophe (e.g., Descartes’ theory).
To help illustrate these guidelines, let’s look at a few more examples of properly formatted possessives:
Sigmund Freud’s method
Charles Dickens’s novels
François Rabelais’ writings (note that Rabelais ends with an unpronounced s)
However, the word species in the sentence above is not a name. The case with species does not seem to be a normal case like dog's or dogs' or even on a par with bus's or buses'. It's difficult to put ones finger on why, though.