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(The Root) -- When Facebook announced Instagram's video service, users across Twitter and Facebook heralded what they saw as the inevitable death of Vine, Twitter's video-sharing app. They may have been on to something.

Marketing Land reports that though Instagram video has only been around less than two weeks, its number of shares on Twitter has already surpassed that of Vine. The number of Vine shares dropped a whopping 40 percent the day the Instagram video launched, and the number continued to fall. On June 26, Instagram video shares broke 3 million, while Vine stayed below 900,000.

Read more at Mashable.