- Andlikeaspiderisexactlywhatthesecrittersare.Toughscanhavecrittersorterrorsaspetsorcompanions.ThecrittersareeasytotrainandcansmellchemicalspresentwithaTBinfection.Yetscientistswerepuzzledatwhatthefoodsourcewouldbeforthesecritters.Lizardsandothercold-b...
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