As much as I agree that these things shouldn't go into landfills where they won't readily decompose, even biodegradable items (peels, cores, etc.) won't decompose that quickly because the situation needs to be just right for rapid decomposition. Likely, if they appear to disappear quickly, they've become food for critters that shouldn't/wouldn't normally eat those items. (Or a human has cleaned them up.)

If you want to be eco-friendly, start a compost bin in your back yard. Trek it in, trek it out, throw it in your compost.