Behavior

While scientists seem to love giving cocaine to rats, 27 rodents getting high (for the first time) on the lab's supply uncovers intriguing insights into how some individuals appear wired for addiction, where 'averse cues' fail to deter drug use.

Most of us do it, in one form or another, but how and when humans began to kiss is still hotly debated among researchers. Now, a new evolutionary theory has been put forward, which says the origins of the kiss may date back millions of years.

A fascinating new insight into elephant communication has been uncovered, revealing that males will harmonize rumbles, from one to the next, to signal that it's time for everyone to move on. Researchers liken it to a barbershop quartet.

Even the most devout cat person can sometimes struggle to understand their pet – like why they scratch up a new chair. Now, a new study delves deep into the domestic lives of cat families to find out just why this happens, and how it can be prevented.

While CBD or cannabidiol is now widely available, widely used and generally considered safe, new research has found its use during pregnancy may produce some strange behavior in offspring and changes to the way their brains process sensory information.

Engaging in activities that are designed to blow off steam when you’re angry probably isn’t going to be effective at reducing your anger, researchers have found. It’s better, they say, to try activities that decrease your physical arousal.

For the first time ever, a lone orca has been observed killing and eating a great white shark. Although orcas were already known to hunt great whites in packs or pairs, one had never been seen going solo before. The finding suggests the emergence of a new hunting strategy.

Despite how cute 2001's Finding Nemo's clownfish was, these colorful animals have a dark side. Scientists have found that they will 'count' another clownfish's white stripes, and will viciously attack any visitor that happens to look just like them.

We've all heard "to follow one's nose" when it comes to trusting your gut. Now, scientists have found that the brain does exactly this, when previously unknown decision-making time cells fire up and evoke a rapid physical response to certain smells.

A fascinating study has found that sniffing female tears significantly reduced male aggression and decreased activity in aggression-related brain networks. It’s suggested that the effect, which is also seen in rodents, serves a protective function.

Male serotine bats living in a Dutch church attic have been captured on camera engaging in marathon sessions of non-penetrative sex, while armed with a heart-shaped penis that's seven times longer than the female's vagina. Yes, this is a true story.

For the first time, scientists have found how our internal body clocks that govern the brain and skeletal system sync up, and upsetting this balance might contribute to injury and accelerate age-related bone and joint decline and disease.