What's the plural form of conspecificity? Here's the word you're looking for.
Answer
The noun conspecificity can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be conspecificity.
However, in more specific contexts, the plural form can also be conspecificities e.g. in reference to various types of conspecificities
or a collection of conspecificities.