Hippos are considered the most dangerous because they are aggressive, they will attack a boat and turn it over. The don't eat people but they are extremely dangerous due to their size. In Africa, the saying goes 'in the bush, an elephant can kill you, a leopard can kill you, and a black mamba can kill you.
Definition: Job Enrichment is the addition to a job of tasks that increase the amount of employee control or responsibility. It is a vertical expansion of the job as opposed to the horizontal expansion of a job, which is called job enlargement.
Job Enrichment: Meaning, Characteristics, Advantages and Limitations! Fredrick Herzberg gave greater emphasis on job enrichment in his two factor theory. He assumed that in order to motivate personnel, the job must be designed to provide opportunities for achievement, recognition, responsibility, advancement and growth.