Why Are Humans the Only Species to Cry Emotional Tears?
Darwin called them "purposeless", but emotional tears have their place.
Tag: tears
Sniffing women’s tears significantly reduces male aggression
Tears may contain odorless social chemical signals that reduce testosterone and aggression in males.
This device can help diagnose diseases from your tears
A truly tear-shedding study.
Crocodile tears are remarkably similar to those of humans
The findings may lead to new treatments for eye problems in both humans and animals.
These images show how different and unique tears really are
In our day to day lives, we don't give much thought to tears - we usually focus more on the ...
