Los Angeles zoo
Hubert and Kalisa, both 21, were known to zoo staff and visitors for their deep bond.
Zoo officials hope to stop further attacks on hippopotamuses Rosie and Mara by placing a "No trespassing" sign near their enclosure.
Twitter got wild.
WHAT'S HAPPENING
The evidence points to P-22 roaming the area that night.
Recently, he and I met at the Old L.A. Zoo. If you haven't been there before, it's worth noting that it's somewhat hidden. A lot of Los Angeles residents don't even know that it's in existence, but it's also not that big of a secret. I mean, it's even been in a few movies. Check Anchorman for an example of that.