The nation's largest brick-and-mortar retailer is getting into the pet care business.

Walmart opened an online pet pharmacy, WalmartPetRx.com, on Tuesday. It will also add veterinary clinics at 100 U.S. stores within 12 months.

The moves are designed to help the Arkansas-based chain better connect with millenials, who spend an average of more than $1,200 each year on pet-related expenses, the San Antonio Express-News reports.

In addition to the new online pet pharmacy, Walmart said it will also stock the top 30 pet medications in all its in-store pharmacies by the end of May.

Pet spending topped $72 billion in 2018, according to the Express-News.