US Patent 7174851 Animal display and habitat assembly

An animal display and habitat assembly having a number of modular animal display units coupled together to enclose a common access area, each of the display units including an outwardly facing display frame with a viewing section between opposing upright members and laterally disposed transition members that include first sections coupled to the upright members and second sections projecting inwardly from their respective first sections to provide a pair of door jambs across which an access door may enclose a display compartment or may be opened into the common access area.