Storks undertake long, arduous migrations every winter, meaning only the fittest can survive. This means resources are often ...
For centuries, scientists had the wrong idea about what birds did to survive the winter. Then, in 1822, the truth revealed ...
A young man and woman are considering marriage; eugenicist Harry J Haiselden warns that they are ill-matched and will produce defective offspring. He is right; their baby is born defective, dies ...