Echolocation systems are susceptible to interference known as echolocation jamming or sonar jamming. Reflection seismology is similar to sonar and echolocation. Bats are nocturnal predators that rely on echolocation to detect their prey. Bats navigate around objects and locate their prey using echolocation. Bats use a variety of ultrasonic ranging (echolocation) techniques to detect their prey. Echolocation probably first derived in bats from communicative calls. Megabats are the only family of bats incapable of laryngeal echolocation. Horseshoe bats have some of the most sophisticated echolocation of any bat group. Moth species including the tiger moth can produce signals to jam bat echolocation. In bats, theta appears in short bursts associated with echolocation. The most notable adaptation is the development of echolocation in whales and dolphins. A useful method of estimating the population is to monitor the bats' echolocation calls. They still lacked the echolocation and baleen of modern odontocetes and mysticeti. There are two hypotheses about the evolution of echolocation in bats. It navigates and locates prey with echolocation.