Animal activity rack system

An animal rack system, comprising:

• an animal monitoring assembly, including:
• a study region configured to receive an animal cage;
• a first emitter panel including a first two-dimensional array of first emitters, wherein the first two-dimensional array of the first emitters includes:
• a first plurality of rows of emitters respectively disposed at a first plurality of heights, wherein each height of the first plurality of heights corresponds to horizontal activity indicative of a particular age range of the animal;
• and
• a second plurality of rows of emitters respectively disposed at a second plurality of heights, wherein each height of the second plurality of heights corresponds to vertical activity indicative of the particular age range of the animal;
• and
• a first receiver panel including a first two-dimensional array of first receivers, wherein the first two-dimensional array of the first receivers includes:
• a corresponding first plurality of rows of receivers respectively disposed at the first plurality of heights;
• and
• a corresponding second plurality of rows of receivers respectively disposed at the second plurality of heights,
• wherein the first emitter panel and the first receiver panel are disposed on opposing sides of the study region,
• wherein the first emitters are configured to emit first beams, and the first receivers are configured to receive emitted first beams from corresponding first emitters, and
• wherein the first receivers are further configured to generate first signals indicative of whether the first receivers received the emitted first beams;
• and
• a console configured to process the first signals based on an input that indicates at least a first height of a current animal in the study region corresponding to an age of the current animal to track horizontal activity of the current animal in the study region and a second height of the current animal in the study region corresponding to the age of the current animal to track vertical activity of the current animal in the study region.