Beats me, I didn't describe the mechanism, just that there is enough evidence to warrant caution. I would like to say that a mealworm suriviving stomach acid is not too radical. There are abounding reports in scientific literature of hognose snakes regurgitating live toads as a defensive strategy. What are the chances of researchers walking up to a hognose IMMEDIATELY after eating a toad? Pretty slim, I'd say. Perhaps things can survive a lot longer in our stomachs than we give them credit for. I theorize that if a toad is able to surivive stomach acids, then a small animal covered in a exoskeleton would fair a lot better.
Nonetheless, this whole thing can easily be corrected. When I do feed out mealworms I simply pick them up by the head with hemostats and crush the head.
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Wildlife dies without a sound, the only voice it has is yours.
...the oldest task in human history: to live on a piece of land without spoiling it."
Aldo Leopold (1938)
"Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us."
Calvin and Hobbes (Scientific Progress Goes 'Boink', 1991)