Disappearance Rate Of Sharks Accelerated By 71% In Last 50 Years: Study

The disappearance rate of sharks has accelerated and their population has nosedived by 71% in about five decades, indicated a new study. According to study researcher Dr Richard Sherley, the main reason behind the sharks' disappearance is over-fishing. Moreover, scientists have alarmed that 24 species of shark among 31 studied are threatened with extinction and three shark species have been put under critically endangered category by the IUCN.