I'm hoping someone here can put me out of my misery; I've been desperately trying to find a poem that I only have a vague memory of. I've checked all my books, and tried Google, but to no avail.
All I remember is the final line;
"What is a tree?" he said.
I think the poem was set in the (not so distant) future, and was about going to a zoo, and talking to a child and telling them about all the animals that had become extinct in the wild. I think the last verse was something about an animal that lived in trees, and it ended with the line above - the child asking 'what is a tree?'
Thanks in advance,