Since these Zyumans are living in our world, Yamato/Zyuoh Eagle, invites them to stay in his uncle's boarding house. Yamato's uncle, Mario Mori is an animal sculptor and is unaware that the four "people" that Yamato invited are actually Zyumans.
Doubutsu Sentai Zyuohger is set for a February 14, 2016 release.
[Source: Doubutsu Sentai Tumblr (link 2, link 3, link 4)]