We purchased a batch of 40 adult Long-Evans male rats (300–350 g body weight) from a laboratory animal supplier for studies on sexual behavior. We kept the males in pairs in shoebox cages in a ...

Since 1999, the American opioid epidemic has killed more than half a million people, and the staggering majority have been ...

Normal rat posture results in proximity of the scrotum to bedding and feces, which predisposes rats to postoperative complications if castration is done using standard scrotal and prescrotal ...

According to a new study by WashU Medicine researchers, male and female rats with a chronic pain condition release different ...

Findings suggest that better understanding of how sex hormones interact with chronic pain could lead to new approaches to addressing the opioid epidemic.

Rats successfully distinguished between two varieties of white wine, Riesling and Sauvignon Blanc, in a study led by ...

View Full Profile. Learn about our Editorial Policies. When researchers castrated a male rat, implanted a uterus into the animal, surgically joined its circulation to that of a female rat, and ...

"The study aimed to assess the effects of unpredictable chronic mild stress (UCMS) during prepuberty and adolescence and the propolis supplementation on cognitive functions in adult male rats." ...