Janine Young reports that when used in conjunction with psychotherapy, MDMA, commonly known as ecstasy, can help treat people suffering with post-traumatic stress disorder. If this finding can be replicated it will be the first time that MDMA has been shown to offer therapeutic benefits. Also research conducted by Stefan Walker of James Cook University in Queensland, Australia has found population crashes in species of reef fish can be linked to an excess of males brought about by fishing. This finding suggests fishing quotas won’t solve the population problem on the reefs. For more head to NewScientist.com.