After decades of decline, the Australian sheep flock aspires to rebuild its population of breeding ewes. A successful, rebuild will rely on high pregnancy rates and number of lambs born and reared. To ...

The timing of reproduction is causally linked to aging and mortality risk patterns in diverse species, but the existence of equivalent effects in humans is contentious. However, previous studies give ...

A University of Michigan-led study based on a review of genetic and health information from more than 276,000 people finds strong support for a decades-old evolutionary theory that sought to explain ...

Please provide your email address to receive an email when new articles are posted on . Certain genetic mutations were linked to age at menarche and prevalent among Chinese and American women. Age at ...

Beliefs and concerns African American (AA) and white (W) patients (pts) with breast, lung, and colon cancer bring to bear on the decision to undergo chemotherapy ...