Should the apocalypse arrive, Wales as we know it may depend on conservationists Ellyn Baker and Kevin McGinn and their cotton bags full of seeds.
The duo are in charge of carefully collecting and storing native wild seeds to create a living genetic library that could restore the country's ecosystem after a disaster.
Ellyn, 25, and Kevin, 38, meticulously plan their summer so they can be in the right place at the right time when plants release their seed - a window of just days in some cases - that, if missed, can take several years to happen again.
But these seeds are not just being saved for some global catastrophe - they have already been used to restore species that have been wiped out.
Inside a small lab tucked away in the National Botanical Gardens of Wales in Carmarthenshire, humming freezers full of labelled silver packets are the last line of defence to save wild species from extinction.
