Yes although when they grow up they live in singulars

Syllables. The plural can mean multiple ie lots of singulars

The possessive of all English singulars, regardless of spelling, is formed by adding -'s

The possessive singular of English nouns is formed by adding -'s, which adds an s sound to the word, and in the case of singulars already ending in s, it adds a syllable: Jones's is pronounced Joneses.

The possessive plural of English nouns ending in s if formed by the addition of the apostrophe alone. It has no sound. Joneses' is pronounced Joneses.

DO NOT use the apostrophe alone with singulars ending in s.

You can add an apostrophe before the "s" in the word "bus" to show possession, like in "bus's schedule." However, some style guides may also accept "bus' schedule" without the additional "s" after the apostrophe.