New research shows that family ties and traits such as manipulation, sacrifice and selflessness are just as key to survival in parasitic organisms as they are in cognitive species like humans. In ...

Last week Sarah Jane explained the evolutionary advantage of helping out family members, an idea known as kin selection. While the benefits are clear, we don't know how kin selection initially evolves ...

The second science -- Simple selection -- The genetic and ecological context of selection -- History, chance, and necessity -- The rate of genetic deterioration -- The rate of environmental ...