Here's what psychological studies have discovered about birth order.
Identical twins look the same, are the same sex, share the same birthday and shares the same genes.
Interestingly, there are more non-identical twins in Australia now than there have been before. The number of twin pregnancies has grown over the past 30 years.
Children not only lose their sibling, their parents can also disappear into profound grief.
It's important to make genuine room for children in discussions about death, ritual planning and meaning-making.
New research shows that both younger and older siblings uniquely contribute to each others’ empathy development.
New research shows that children who are kind, supportive and understanding influence their siblings to act and behave in similar ways.
Chronic pain can be disabling.
Chronic pain often comes with other illnesses. Researchers have now shown that genetics can play a part in how likely you are to suffer.
Not everyone looks forward to Christmas.
A new survey of people living estranged from a parent, sibling or adult child has found many feel judged or blamed for their family breakdown.
To whom is she more closely related?
How many times do people make the comment about which parent a child takes after. So what does genetics say?
Kardashian kin: study would suggest Kourtney is the smartest.
Being the oldest, middle or youngest child doesn't affect personality as much as we may think. But the relationship we have with our siblings can influence both cognitive and emotional development.
Birth order clearly matters, just not for personality.
Birth order offers an intuitively appealing explanation for the perplexing differences between us and our siblings. Only problem is, it's a myth.
Research shows that family has an important role in getting children to play sport and nowhere is this better demonstrated than in the Rugby World Cup.
Siblings often turn out to be very different from each other. Ever wondered why?
Parents tend to have greater expectations of their firstborns. But, it's different when the younger sibling is a girl. What impact does it have on their grades?
Like those that can’t live without their siblings, there are those like music’s Gallagher brothers who can’t stand the sight of one another.
How we get along as siblings is a deeply personal issue and profoundly effects our lives as individuals. It’s an issue that crosses cultures and economies, levels of class and fame.
What’s up, bro?
Macaque monkeys grow up with their mothers and are often not familiar with their fathers. But they can recognise the paternal side of the family even without ever being introduced to them, according to…
Scientists have discovered similarities in the brain activity patterns of autistic teens and their non-autistic siblings…