The main idea is about Dolphins. The 2 key details are how they take care of there babies and about their teeth.
Answer:
Acquiring a job in the postal service may be difficult in the future
Explanation:
It is Acquiring a job in the postal service may be difficult in the future because postal carriers, postal service mail sorters, proccesors, and processing machine operators both have a loss. Carriers are loosing about 26,000 and carriers, sorters, and operators are loosing about 30,000 people. Loosing that many people will lead to it being less likely to work at a post office.
