Mars will pay $7.7 billion, or $93 a share for VCA in a deal valued at $9.1 billion when the animal hospital chain’s $1.4 billion in debt is factored in. The agreement has been unanimously approved by directors of both companies, and VCA will join Mars’ Petcare division, which includes veterinary services like Banfield Pet Hospital, Bluefield, Pet Partners, and several animal nutrition brands.