Here is some encased ooze created from the Felwood samples you recovered. Take the case to Un'Goro Crater and find a pure ooze... the primal variety will do nicely. When you get close enough, release the ooze in the case, and let us see what the two think of one another.
After the experiment concludes, bring me a sample of whatever is left over. I will await you here in the Apothecarium.
Oh, most excellent, <name>. This is most excellent.
Such a tale. Who would have thought the two would interact with one another in such a way... I will have to spend more time looking at the environmental issues that cause changes in these creatures.
I will continue my research for now. Perhaps we will speak again soon. Until then, I wish you well.