HealthFreedom from lice may have led to modern allergies Wild mice with more lice have reduced immune reactions, which means humanity's bug-infested past might be why we have more allergies today 51¶¯Âþ
Life'Evolution proof' agents give mosquitoes a slow death Insecticide resistance in malarial mosquitoes could be wiped out for good – paradoxically by using slow-acting insecticides 51¶¯Âþ