Which Is the Loudest Animal on Earth?

The sperm whale (Physeter macrocephalus) produces echolocation clicks that can reach about 230 decibels underwater — powerful enough to potentially stun or disorient prey. On land, the loudest animal is the howler monkey, whose calls can reach about 140 dB and carry up to 5 km through dense forest. Among insects, the African cicada produces sounds up to about 107 dB. The blue whale's vocalisations reach up to 188 dB but at very low frequencies (infrasound) that humans cannot hear without instruments.