There’s a video on youtube of something similar happening between a much younger wildebeest and a hippo—a gator had grabbed the baby, and the hippo got it away from the gator and took it on shore...tried to get the baby to breathe and nudged it for a few minutes, but it was too late, so the hippo left it on the shore. Some vultures showed up, and a minute later the gator returned to reclaim it’s dinner...very interesting hippo behavior, I’d always heard they were reclusive and just plain mean.