Abstract: An incubator stand for holding a plurality of incubators in a stacked arrangement, the incubator stand comprising: a stand base; a shaft element upstanding from the stand base; and a plurality of incubator bases rotatably received on the shaft element, each incubator base forming a support for or forming part of an incubator. A stop element is also provided which prevents or limits angular displacement of each incubator base, so that each incubator base can be pivoted out from a stack of said incubator bases to in use access an incubator associated therewith without causing the stack to topple. An incubator docking system and incubator system for transferring incubators between different environmental conditions are also provided.