Japanese mobile-social gaming giant GREE has acquired App Ant Studios, the San Francisco-based developer behind the company’s casual-social title Dino Life. GREE did not disclose the financial terms of the deal.

App Ant Studios was formed just over 15 months ago, founded by four game industry veterans who had racked up stints at EA, Yahoo!, TinyCo and Storm8. According to the App Ant website, Dino Life was the company’s only completed game.  Under the terms of the acquisition, all App Ant employees will join GREE, with the company’s four co-founders taking up unspecified leadership roles in GREE’s engineering and game development teams.

The acquisition is GREE’s first since the company acquired mid-core mobile developer Funzio for $210 million. Its likely GREE decided buy the App Ant team to bolster its Android development expertise. When Dino Life made its debut in May, the game was an Android exclusive title, although it appears GREE is currently testing an iOS port of the game in the Canadian iOS App Store.

So far Dino Life has been a modest success for GREE and has been downloaded more than 500,000 times according to its Google Play listing. Our traffic-tracking service AppData reports the title is currently the No. 357 most popular game and the No. 439 top grossing app in the Google Play app store.