“Lieutenant, stop petting the wildlife.”
“With all due respect, sir, the wildlife is damn fluffy.” -- TheDragonsFlame
Look with your eyes, not with your hands. -- Human parental expression.
Humans are tactile creatures, for all that they're evolved to understand the world primarily through vision. Their young will prioritise it thusly - see a thing, touch a thing, and if possible, stick it in their mouth. Ninety percent of parenting a human is making certain they don't do this. Especially the last step.
And as it is known amongst other galactic citizens, humanity is a child race. A ship's human will run and find out. Touch dangerous things. And attempt to see if that thing on that tree-like object is as tasty as it looks or smells. Such is the case with Lieutenant Fay.