Star Trek - Are You Running A Nursery?

The tribbles that Uhura brought onto the Enterprise have multiplied, and the crew discovers that their purr is very relaxing and smoothing, even for Spock (The Trouble With Tribbles)

Star Trek: Discovery streams exclusively on CBS All Access in the United States and is distributed concurrently by CBS Studios International on Netflix in 188 countries and in Canada on Bell Media’s Space channel and OTT service Crave.