Does a viral video show real footage of a bear fighting a tiger over a moose carcass? No, that's not true: The video contained multiple signs strongly pointing to AI. Three online detectors placed the probability of the clip being a product of generative AI between 97% and 99.9%.
The claim appeared in a post (archived here and here) published on X on April 23, 2026. It opened:
Bears are calm in nature but I never knew they can actually take down a Tiger. Wow this is shocking.
The post contained a video. Here is what a thumbnail from it looked like on X at the time of writing:
(Image source: post by @Verydarcman_PR on X.)
The video showed a CapCut watermark:
(Image source: post by @Verydarcman_PR on X.)
That referred to editing software and was not necessarily indicative of the video's authenticity.
Yet, multiple AI detection tools suggested the clip was AI-generated.
Lead Stories tested the thumbnail from the clip with Hive Moderation, Sightengine and AI or Not. Those AI detectors showed that the chances of the clip being AI were 99.9%, 97% and 99%, respectively.
(Image source: Hive Moderation.)
(Image source: Sightengine.)
(Image source: AI or Not.)
At the 00:05 mark, we see the bodies of the bear and the tiger deformed in a way consistent with typical AI video glitches:
(Image source: post by @Verydarcman_PR on X.)
At the 00:28 mark, the tiger's body gets deformed again:
(Image source: post by @Verydarcman_PR on X.)
At the 00:38 mark, the animals merge into each other:
(Image source: post by @Verydarcman_PR on X.)
Google's "About this image " tab didn't show that the thumbnail originated from footage aired by a credible broadcaster.
