LifeThe world's most beautiful birds' eggs There's a dazzling array of colour and pattern in the 600 eggs photographed in Mark Hauber's The Book of Eggs, plus fascinating insights into their biology CultureLab
LifeIn the beginning: The story of the embryo The embryo was little more than a hypothesis until the microscope came along. Jane Maienschien explores early life in Embryos Under the MicroscopeCultureLab