Lead levels in backyard hen eggs are often much higher than in eggs bought in the shops. A new study of soil lead, chickens and eggs locates the high-risk areas in our biggest cities.
Dairy, meats and eggs can get risky when left in warm conditions.
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Bird flu is highly contagious in domestic flocks, and a major outbreak is underway in the US. A veterinary scientist explains what consumers need to know.
Artist’s rendering of the Chicxulub asteroid entering Earth’s atmosphere 66 million years ago, triggering events that caused a mass extermination.
Roger Harris/Science Photo library via Getty Images
It’s too hot for bare feet, but that doesn’t mean you can cook a fry-up on the path outside your house. A frying pan is a much better tool for the job, because it conducts heat far more efficiently.
It’s still not known exactly how female birds produce such colourful and intricately-patterned eggs. But we do have some theories about the survival advantage this provides.
Victorians who need donated eggs and sperm face limited choice, lengthy waits and high costs.
Getting the job done. A female Asian water dragon (Physignathus cocincinus) produced a daughter (left) without the assistance of a male.
Skip Brown/Smithsonian’s National Zoo
Mercedes Burns, University of Maryland, Baltimore County
Parthenogenesis, a form of reproduction in which an egg develops into an embryo without being fertilized by sperm, might be more common than you realized.
All eggs in supermarket Morrisons will soon be free range. But this – and other measures intended to promote ethical consumption – could impact badly on the worst off.
IVF and the businesses that spring up alongside it are part of a multi-billion dollar global market for fertility treatments.
from www.shutterstock.com
The story of how human eggs became an integral part of a multi-billion dollar global fertility industry starts in a unlikely place: the sex lives of farm animals.
The Heart Foundation now backs full-fat milk if you’re healthy. But it still recommends reduced-fat milk if you have high blood pressure or heart disease.
from www.shutterstock.com
Low-fat milk provides no extra benefit for your heart over full-fat milk, if you’re healthy. But it’s too soon to pour the low-fat options down the sink.
Therizinosaurs and their fossilised eggs.
Mark Witton/Kohei Tanaka
A recent study revisited the issue about eating foods high in cholesterol, such as eggs. The findings are nuanced but suggest that those with high cholesterol may want to limit food with cholesterol.
Yolks are a great source of vitamins, minerals, fats and proteins packaged up by the female animal for an embryo.
Emily Nunell/The Conversation CC-NY-BD
A yolk allows a developing animal to stay in an egg longer, boosting its chance of survival. The downside is the mother has to work hard finding extra food so her body can create a nutritious yolk.
A 12-week-old baby female macaque, named Grady, was born from frozen testicular tissue.
Oregon Health and Science University
Children with cancer not only endure chemotherapy or radiation treatment but they may also face infertility in adulthood. Now a new procedure, just proven in monkeys, may be close to use in humans.