Are rare breeds important for the conservation of genetic diversity?

Today is the International Day of Biological Diversity. As it happens, Eat This Podcast today published an episode that raises a question I have seldom seen given any serious discussion. Are rare breeds important for the conservation of genetic diversity? Like all headline questions, the answer is probably “No”. Let …

Antibiotics and agriculture Tackling the problem of antibiotic resistance at (one) source

Antibiotic resistance is one consequence of feeding animals large amounts of antibiotics — about three times the amount given to people in the US. Why is it so hard to regulate the use of antibiotics in agriculture, and how else might we tackle the problem?