![Possum eating a native mistletoe, Peraxilla colensoi.](http://static.sciencelearn.org.nz/images/images/000/001/763/full/Brush-tailed-possum20160826-15827-tkytwf.jpg?1674166796)
A possum eating a native mistletoe, Peraxilla colensoi. New Zealand scientists are working on a vaccine that would make possums infertile.
A possum eating a native mistletoe, Peraxilla colensoi. New Zealand scientists are working on a vaccine that would make possums infertile.