National Animal Identification System hold one or more heads of livestock including horses, cattle, sheep, goats, pigs, deer and camels, though the NLIS will not confirm ownership of livestock. The system originates from a cattle-tracing system introduced in Australia in the 1960s to help fight bovine tuberculosis. The Australian system has over 11,000,000 phantom livestock in the system that do not exist. This system costs farmers money because of the increased handling time and lost margins when tags do not match in the system resulting in lower payments to farmers. New Zealand is planning a similar National Animal Identification and Tracing system. National Animal
Animal echolocation extremely narrow beams and many receivers to localize a target (multibeam sonar), animal echolocation has only one transmitter and two receivers (the ears) positioned slightly apart. The echoes returning to the ears arrive at different times and at different loudness levels, depending on the position of the object generating the echoes. The time and loudness differences are used by the animals to perceive distance and direction. With echolocation, the bat or other animal can see not only where it is going but also how big another animal is, what kind of animal it is, and other features.. At the most