"Not My Type" t-shirt

I almost forgot, the grah'bihn is *prehensile.* They can lift at least 15 pounds with it. I told a friend about that once; I didn't see her face, but I imagine it went pale.

Bear in mind, though, it's also not as thick as the human version.

That actually suggests a fibrous composition, rather than fleshy.

Well, yes, but an elephant's trunk is all muscle and look how thick it is. You'd need the fibers for the muscles to attach to, you see, or you might have trouble reaching that length and still lifting weight.

This is true, but consider even their thickness, as compared to other organs.

On the other hand, I know that different proteins (and thus cellular or bodily structures) are possible which make for unEarthly properties in living creatures, even using DNA, just by changing how many letters in a codon. Wood that acts like a spring. Flesh that's more like a gel. Muscles which push instead of pull.

But you're right, depending on the requirements you can get what you need from Earthly examples.