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Amazon’s Prime Now facility near its Seattle headquarters.

Amazon’s relationship with the United States Postal Service for deliveries that has come under political scrutiny, and it is looking to take control of more of the process. Last year it unveiled a new program to help people start their own delivery businesses. And this holiday season it hired a fleet of seasonal drivers to help deliver packages.

Amazon’s package deliveries are largely “focused on urban areas” according to Morgan Stanley. The retailer still relies on third-party couriers for many of its last-mile deliveries in rural regions. Amazon is now shipping about 2.5 billion packages per year and has more than doubled its share of U.S. package volumes since this time last year, according to the report.

Amazon’s headcount rose 13 percent in the second quarter of 2019 to a global total of 653,300, an all-time high for the 25-year-old tech giant. But its technical headcount for areas such as Amazon Web Services and its voice technology arm grew at nearly twice the rate of overall hiring in the quarter, Amazon CFO Brian Olsavsky said on a call with investors Thursday.

Amazon’s robots look a lot like Starship’s, which?are being deployed for a number of uses. The latest example is a fleet of 25 robots that delivery food on demand from dining halls to students at George Mason University.