Yaccarino led X through a tumultuous period as the social network tried to rebuild its relationship with brands concerned that their ads could show up next to offensive content.
In a video taken by a SoCal hiker, a puma appears to stalk toward her while she yells, 'No! Go away!' until, finally, the cat appears to listen and runs off.
The Trump administration sues California, threatening billions of dollars in education funding, over a policy allowing transgender athletes to compete in girls' and women's sports.