Fruit Bats (band) Bats had begun to evolve into a band with the inclusion of I Rowboat members Dan Strack and Brian Belval and in 2001, their debut record Echolocation was released on Califone's imprint, Perishable Records. Tours followed with the likes of Modest Mouse and The Shins. Fruit Bats signed with Sub Pop in 2002 and have released four albums with the label including "Mouthfuls" in 2003, "Spelled in Bones" in 2005, "The Ruminant Band" in 2009 and "Tripper" in 2011. Johnson also joined The Shins in 2009. Their song "Humbug Mountain Song" spurred new fan activity. In an interview with "Reverb
Animal echolocation that the phase of the echolocation signals is used by the bats, while cross-correlation just implies that the outgoing signal is compared with the returning echoes in a running process. Today most – but not all – researchers believe that they use cross-correlation, but in an incoherent form, termed a filter bank receiver. When searching for prey they produce sounds at a low rate (10–20 clicks/second). During the search phase the sound emission is coupled to respiration, which is again coupled to the wingbeat. This coupling appears to dramatically conserve energy as there is little to no additional energetic cost