Biology

Why do people and animals naturally favor one side over the other?

Why do people and animals naturally favor one side over the other?

Most left-handers can rattle off a list of their eminent comrades-in-arms: Oprah Winfrey, Albert Einstein, and Barack Obama, just to name three, but they...
These predators might be the earliest animal

These predators might be the earliest animal

For the last decade, zoologists have battled over the question “What is the oldest branch of the animal family tree?” Is it the sponges, as...
Most cancer mutations are due to random DNA copying 'mistakes'

Most cancer mutations are due to random DNA copying ‘mistakes’

Johns Hopkins Kimmel Cancer Center scientists report data from a new study providing evidence that random, unpredictable DNA copying "mistakes" account for nearly two-thirds...
Telomere length can predict your cancer risk

Telomere length can predict your cancer risk

The length of the telomere "caps" of DNA that protect the tips of chromosomes may predict cancer risk and be a potential target for...
How scientists explore our genome’s ‘dark matter’

How scientists explore our genome’s ‘dark matter’

A new method lets researchers quickly screen the non-coding DNA of the human genome for links to diseases that are driven by changes in gene...
Are your muscles genetically prepared to run a marathon

Are your muscles genetically prepared to run a marathon?

For a few years, running has been fashionable. But there is a great difference between the physical demands of running a few kilometres and...
Married couples with common ancestry also share similar genes

Married couples with common ancestry also share similar genes

When two married people appear similar, it isn't necessarily a coincidence, but may be related to the tendency to marry someone with the same...
Methane emissions from trees

Methane emissions from trees

A new study from the University of Delaware is one of the first in the world to show that tree trunks in upland forests...
Did fruit, not friends, give us big brains?

Did fruit, not friends, give us big brains?

Diet, not social life, may be the driver of brain size evolution, a new study suggests. The findings call into question “the social brain hypothesis,” which...
Oops! Our bodies can make Salmonella more toxic

Oops! Our bodies can make Salmonella more toxic

When someone gets Salmonella, their body’s own inflammatory response can make things worse by waking up viruses called bacteriophages. These viruses, also known as phages,...