Toxoplasmosis is a parasite-borne infection that can wreak havoc on wildlife, humans with compromised immune systems, and pregnant women. The parasite that causes toxoplasmosis comes from cats, specifically their faces. It has been blamed for the death of at least eight Hawaiian monk seals, the endemic Hawaiian crow, and several other vulnerable bird species. However, there is little agreement over a solution to the problem. The debate largely boils down to one question: should feral cats be eradicated?