National geographic flash cards?

ok so back when i was about 9 or 10 (im 25 now) i used to have these flash cardss things that i believe were made by nat geo but i could be wrong, they came in a plastic green lunch/tool box case and had animals from all over the world on them. every thing from mammals fish birds reptiles andevenn insects and i think mico bacterias and things. if any one remembers these and knows who makes them i would love to find them again!