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.
Jockey Hugh Bowman rides Winx for an exhibition gallop at the Royal Randwick Racecourse, in Sydney, earlier this month.
AAP Image/Joel Carrett
It's the last race for Winx this weekend and she's been an incredible race horse. But what makes a good race horse?
A report has found the causes of mass fish deaths in the Darling river.
Fish deaths at the lower Darling can happen again. Here's what we can do about it.
Police move in on animal rights protesters who blocked the intersection of Flinders and Swanston streets in Melbourne on Monday.
When the government claims that only non-disruptive protests are "civil", it risks censoring those who seek to go beyond mere symbolic actions and have some impact on others through their protest.
Fijian prime minister Voreqe Bainimarama’s intervention has led to the quick release of three New Zealand journalists.
The prompt release of New Zealand journalists, arrested while investigating environmental degradation caused by a Chinese development project in Fiji, highlights PM Bainimarama's diplomatic dilemma.
Actress Felicity Huffman was one of the celebrities involved in the recent US college admissions scandal.
Caregivers using privilege to buy their children's way into, and through, education is not a Hollywood anomaly, nor the domain of elites. The middle class have been doing it in Australia for decades.
Protesters assembled at a Reclaim Australia rally in Sydney in 2017.
Groups promoting right wing extremism, like the Antipodean Resistance and the Lads Society, have recently dominated headlines, but they are far from the sum of the extreme right in Australia.
Sheep are among the most common carriers of Q fever.
Q fever is a flu-like infection that spreads to people from animals. The bacteria that causes it can withstand harsh environmental conditions – in particular, drought.
The government’s target to kill 2 million feral cats sounds impressive, but lacks scientific rigour.
The plan to kill 2 million feral cats nationwide by 2020 makes for good headlines. But it's also a simplistic goal that won't necessarily deliver conservation benefits to native species.
The Treaty of Waitangi promised Māori British subjecthood.
Much of the debate about the Treaty of Waitangi has focused on sovereignty and self-determination, but the issue of citizenship needs more attention.
Secondary school students typically spend less time doing physical activity than they did in primary school.
The transition from primary to secondary school can be tough for children socially and emotionally. Students also do less physical activity in secondary school, and need help with this transition too.
Russia, Turkey, Iran and Israel will keep vying for power in Syria long after the US is gone.
Now that the US has pulled out Syria, is the war actually over?
Exercising during pregnancy is fine, so long as it’s not a tough new regime.
Five out of five experts agree running during pregnancy is OK.
Sheep grazing on the Darling River bed.
A decade of bipartisan research has provided plenty of answers to the problems plaguing the Darling River.
Bahan-bahan daur ulang seperti terowongan, pipa, peti, busa, karet, dan komponen plastik membuat peralatan bermain yang lebih baik untuk anak-anak daripada set ayunan yang tidak bisa diubah dan dipindah-pindah.
Beberapa situasi sosial lebih kondusif untuk melakukan
Memperhatikan gawai di depan orang lain disebut _phubbing_ dan sekarang sudah umum terjadi. Tapi siapa yang paling sering mengalami _phubbing_? Dan dalam situasi apa saja?
Students and teachers protesting at Parliament House in Canberra on December 5, 2018.
Far from proof of a flawed education system, politically active school students are evidence our education system is working well.
Prince Harry and his wife, Meghan, receive a “hongi,” a traditional Māori welcome, from Māori elders on the lawns of Government House in Wellington, New Zealand in October 2018. In New Zealand, Māori elect members to parliament from designated Māori constituencies – and the right to participate offers more than the ‘duty to consult’ in Canada.
(AP Photo/Kirsty Wigglesworth)
In New Zealand, sovereignty is disputed, but the Maori case for sharing it with settlers underscores the limits of First Nations consultation in Canada.
Success with conservation of Kangaroo Island’s Glossy Black-Cockatoos can now be compared with other bird conservation efforts around the country.
New research has shown how to measure conservation progress for Australia's 238 endangered bird species
Election winner, former coup leader, Josaia Voreq “Frank” Bainimarama, speaking at a climate change conference in Germany in November 2017.
The re-election of a former coup leader as Fiji's prime minister comes as Australia pays more heed to the south-west Pacific.