Pandas

We were watching a news report on pandas when my mom piped up, "What are those?"

"Those are pandas, Mom," I replied.

"And what are pandas good for?" she asked.

We were dumbfounded.

"Gee, I'm not sure. What are pandas good for... Greg?" I asked my husband.

"Um...well...they're cute and nice to look at...they're endangered...so we have to like them," he stammered.

We haven't come up with a good answer yet.