colorado river toad incilius bufo alvarius

alvarius amphibian amphibious animal aquatic batrachian brown buffo bufo bumpy camouflage closeup colorado common desert endangered eye fat frog front gape gaze goggle head incilius intense jag line mouth nature peer poisonous psychoactive red river sand scowl semi skin spike stare stone tailless toad ugliness venomous vertebrate warts warty wild