Yes but I suppose it'd be nice to explain to everyone else
Yael is a Biblical heroine whose name means "ibex". The zoo's Nubian Ibex are kept in a large, grassy, and rocky enclosure mixed with Geladas- which have a large red coloration on the chest which could appear to be an injury.
STE here got the answer so quickly because he happened to have used the term "bleeding hearts" when referring to Geladas earlier in this thread and pieced two and two together. I guess I should have been more careful with my wording