Microbial reactors can turn human waste directly into food. Disgusting, yes, but may be essential for space travel.
from way back in November 1953: Visual Patterns in the Recognition of Individuals Among Chickens. Basically, the experiment involved changing chickens’ appearances — color, shape of the head and neck, comb — and seeing how the flock would or would not recognize them when they were returned.
Silly and fascinating at the same time.
A review of Antonio Damasio’s The Strange Order of Things. To wit: the mind is more than just the brain.