Toadfish are benthic ambush predators that favor sandy or muddy substrates where their cryptic coloration helps them avoid detection by their prey. Toadfish are well known for their ability to `sing`, males in particular using the swim bladder as a sound-production device used to attract mates. Toadfish are usually scaleless, with eyes set high ..... Found on http://en.wikipedia.org/wiki/Batrachoididae