A European common toad [Bufo bufo] resting peacefully below the surface of a flooded field. In some amphibians, such as lungless salamanders, cutaneous [skin-based] respiration may account for more than 90% of gas exchange. This type of oxygen absorption relies on moisture, and although toads are more tolerant of dry conditions than salamanders, they are still capable of respiration through their skin when submerged in water for short periods of time. That’s why you’ll sometimes find toads sitting at the bottom of ponds, like this fellow here. Image source here.
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“A European common toad [Bufo bufo] resting peacefully below the surface of a flooded field. In some amphibians, such as lungless salamanders, cutaneous [skin-based] respiration may account for more than 90% of gas exchange. This type...](https://64.media.tumblr.com/d153338ef0f9cc1308f6359b81e84dcb/tumblr_pslf4ck6hq1u0gizpo1_500.jpg)