Tinnitus is the medical term for ringing in the ears. According to PDR Health, Tinnitus is,âa condition in which people hear constant or periodic sound not caused by an outside source. The sound can also be described as a ringing, buzzing, or clicking noise that occurs inside the head. Ringing in the ears can be heard in one or both ears, and in the head, and its pitch may be low or high.â.
2. View. comments. Out of work: Chris Hansen, the longtime host of Dateline and To Catch a Predator, has not had his contract renewed by NBC. The host of 'To Catch a Predator' has been dropped by NBC after working for the network for 20 years. It was announced on Monday that Chris Hansen will not have his contract renewed by NBC and the network gave no explanation for the decision.
The deceived signal-receiver is typically another organism, such as the common predator of two species. As an interaction, mimicry is in most cases advantageous to the mimic and harmful to the receiver, but may increase, reduce or have no effect on the fitness of the model depending on the situation.