What animal's heart does the huntsman bring to the Queen?

The huntsman brings the Queen a boar's heart as proof that he has killed Snow White.

In Disney's 1937 film, the huntsman cannot bring himself to murder Snow White. He urges her to flee into the forest, then kills a wild boar and removes its heart. He places it in a jeweled box and presents it to the Evil Queen, who believes it belongs to Snow White.

This scene adapts a plot point from the Brothers Grimm tale. In the Grimm version, the substitute heart also comes from a young wild boar, although the surrounding details differ. Some retellings use a pig's heart, and that wording can cause confusion; “boar” is the usual answer for Disney's film and the traditional English fairy-tale version.

The Queen's demand for a heart emphasizes her intention to verify the huntsman's story. Her reliance on physical proof also sets up the later revelation that Snow White remains alive.