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
Downer (animal) Downer (animal) A downer is an animal, usually livestock, that cannot stand on its own and therefore is to be killed. A downed animal, one that is unable to stand, is not necessarily a downer. The animal's inability to stand may be caused by illness or injury. In nearly all cases it is considered by most farmers to be both humane and cost-effective to kill the animal when it becomes a downer, rather than keeping it alive and unhealthy. Once killed, and depending on how the animal became a downer and how it was killed, the animal may then be