Posts Tagged ‘extinction’

Promiscuous females may be the key to a species' survival, according to new research by the Universities of Exeter and Liverpool. Published 25 February in Current Biology, the study could solve the mystery of why females of most species have multiple mates, despite this being more risky for the individual. Known as 'polyandry' among scientists, the phenomenon of females having multiple mates is shared across ... Full story

A study of heart-attack patients published in the late 1980s was wildly successful. Researchers showed they could lower the heart-attack death rate to 8% from 13% by giving patients aspirin and a drug called streptokinase. These days, though, an 8% mortality rate would be disastrous; the rate in most studies of heart attack patients is somewhere around 4%. That points to a ... Full story