Birds show surprising resilience in the face of natural stresses

Life as a wild baby bird can involve a lot of stress; competing with your siblings, dealing with extreme weather, and going hungry due to habitat loss are just a few examples. However, birds have an amazing capacity to overcome ...

Environmental hormones – tiny amounts, big effects

Empty nets and few species – environmental hormones are believed responsible for the diminishing numbers of fish. How damaging are these substances really, though? Studies that depict a complete picture of the lives of ...

Bright birds make good mothers

Female blue tits with brightly coloured crowns are better mothers than duller birds, according to a new study led by the University of York.

Reproductive tract secretions elicit ovulation

Eggs take a long time to produce in the ovary, and thus are one of a body's precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at ...

Family composition determines success of great tit parents

Great tits who have as many sons as daughters acquire more grandchildren than great tits with an uneven family composition. That is because their children are reproductively more successful concludes NWO researcher Reinder ...

Stress may lead to better bird parenting

Birds with high levels of stress hormones have the highest mating success and offer better parental care to their brood, according to new biology research at Queen's University.

Scientists call for 'swifter and sounder' testing of chemicals

Scientific societies representing 40,000 researchers and clinicians are asking that federal regulators tap a broader range of expertise when evaluating the risks of chemicals to which Americans are being increasingly exposed.

page 2 from 3