Wild Asian common toad, duttaphrynus melanostictus vocal sac pulsated as it perched still on lush green grass, waiting patiently for the opportunity to strike at the housefly flying around it

asian common toad frog amphibian wild wildlife animal species pest spined black spectacled sunda javanese nature natural duttaphrynus melanostictus monsoon south southeast asia australia agriculture agricultural victoria parasite anura invasive malaysia thailand indonesia cane grass habitat housefly fly predator eat prey food environment reptile insect taiwan pulsate throat breathe green