Edible anurans have to rely on more than just poison glands which tend to work too late (i.e. after the predator has it in his mouth!) Related articles: How to Rid Your Garden of Toads-tips for dog owners (aside from training the dog of course!)
Manevalâs staining method is a negative staining method. To stain a capsule of a cell by Manevalâs staining method. 1  1 % Congo red solution.  Manevalâs stain.
Staining is a simple basic technique that is used to identify microorganisms. Simple staining is used to study the morphology of all microorganisms (Fig 1). The simple stain uses the basic dyes such as Methylene blue or basic fuschin.