Nearly half the eggs sold in Australia are free-range, but only 5% of pork comes from pigs raised outdoors.
Having looked after chickens for generations, humans are pretty good at getting them to keep on laying eggs.
Eggs are tiny wonders, but even wonders can go wonky sometimes. We look at everything from double-yolkers to eggs with no shell at all.
The current review of standards for egg and poultry farming does little to assuage fears that the industry wields too much influence. Only an independent regulator can restore public confidence.
An ancient sexual conflict over mitochondrial inheritance may be responsible for the evolution of the two sexes as we know them.
Gym-goers are going crazy for these products. It's time for a reality check.
Have you ever heard chicks peeping in the egg? Have you ever wondered how they manage to take their first breath in the shell?
Even a fraction of a penny per egg over hundreds of thousands of eggs can mean being able to survive as a business, so the temptation to cut corners is huge.
After Snowdale Holdings was penalised A$1 million for lying about their eggs being free-range, here are some tips on getting what you pay for in the supermarket.
Many shoppers choose free-range eggs because they think they are tastier and healthier, rather than being motivated purely by concerns for hens' welfare, a new study has found.
In 1997, scientists announced they'd created a healthy sheep cloned from another ewe's mammary gland cell. Two decades on, the technique is being refined and applied to new challenges.
If you're planning to become a parent, better lifestyle habits can reduce the risk of obesity in your children.
Victorian attitudes influenced what scientists thought they were observing about sexual behaviors in the animal world. But modern techniques reveal the myth for what it is.
It doesn't happen often that a multinational will blink when taken on by an individual. But a passionate campaigner's successful crusade has shown how it can be done.
Voters in Massachusetts passed a ballot measure that assumed so. But a philosopher of animal welfare suggests the ethical issues involved are trickier than a yes/no vote would suggest.
For more than three decades an egg found in a remote Australian desert was thought to be from a rare nocturnal parrot. So what happened when scientists decided to double-check?
Embryos greedily want more resources than their fair share. New research investigates how early in evolution their hormonal tactics arose.
Most women will have been made aware they have a ticking biological clock. But most probably don't know it's because women are born with a limited supply of eggs, and eventually they will run out.
New standards for free-range eggs will limit stocking densities and mean hens must have access to outdoors.
The National Health and Medical Research Council call for public submissions on whether sex selection should be allowed without a medical reason recognises changing social attitudes.