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Where are the poison-secreting parotid glands located on true toads?
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frog and toad
The natterjack toad (Bufo calamita) lives in northern Europe.
On true toads, the poison-secreting parotid glands are located in two prominent raised areas situated directly behind the eyes. While poison-secreting glands are also found across the back and within the warts of these amphibians, the concentration of toxins is highest within these specific parotid structures.1