On Star Trek: Discovery Season 2 Episode 2, Discovery's away team -- Burnham (Sonequa Martin-Green), Captain Pike (Anson Mount), and Owosekun (Oyin Oladejo) -- assess the situation facing the human outpost of New Eden.
Astromycology has taught me that nothing is ever truly gone. Fungi are the universe's recyclers. This is how termination begins creation. It's why life is eternal.
Burnham: In order to guide us through the mycelial network, Commander Stamets injected himself with tardigrade DNA, a violation of Starfleet's ban on genetic manipulation. Saru: They were willing to overlook this during the war however. Pike: A tardigrade? Saru: I suppose you had to be there.