Pine processionary development, pine processionary caterpillars are highly irritating to the skin. Contact with the hairs of the caterpillar can cause severe rashes (urticaria) and eye irritation. Some individuals may have an allergic reaction to the caterpillar's hairs. 5th stage larvae can eject hairs when threatened or stressed; the hairs, which have the form of harpoons, then penetrate and irritate all areas of exposed skin nearby with an urticating protein. Allergic reactions may follow in susceptible individuals on subsequent exposure to the hairs. The pine processionary is an economic pest in coniferous forests in southern Europe. It is controlled to some extent
My Head Is an Animal as the second single from "My Head Is an Animal" in the UK and Ireland. It was released on 12 April 2012, in the lead up to the album's re-release in Europe. A promotional single followed in June. "Six Weeks" was released as a promotional single from the album in the UK and Ireland. It was released as a digital download on 27 August 2012. "Mountain Sound" was released in the US as the second single from the album, and the fourth overall. Seeing a release worldwide as the follow-up to "Little Talks" as well, it was released on 2