Asteroid 349507 (2008 QY) is around 1.2 kilometers in diameter, or around 1,000 capybaras – large enough that an impact event (which won't happen now) could be a worldwide catastrophe.
While the asteroid is traveling too far to pose any risk to the Earth, a possible impact event with it could become a worldwide catastrophe.
I don't think they know how volume calculations work. When I read 1000 Capybaras, I though "huh, that's not actually that big", until they say it's actually the diameter or that much capybaras.
EDIT: I did some pocket calculations and it seems like 1000 capybaras can fit into an around 13 capybara diameter sphere.
The capybara puns in this news article are terrible. This article was not worth the read, but since Soo many people in here are complaining about the capybara measurement I shall give you the exact measurement which is 1.2 kilometers wide