Surviving extreme conditions in nature is no easy feat. Many species of mammals rely on special adaptations called daily ...

Among genetically identical ‘agouti viable yellow’ (A vy) mice, some are brown and lean while others are yellow and obese. These differences are due to epigenetics, a system of molecular tags – such ...

Research into how a father’s choices — such as diet, exercise, stress, nicotine use — may transfer traits to his children has ...

Metastable epialleles may sound like complex science, but they help explain why identical animals can still look and act differently. For years, scientists asked why two mice with identical DNA could ...

When a new memory forms the brain undergoes physical and functional changes known collectively as a “memory trace.” This memory trace represents the specific patterns of neuronal activity and ...

Scientists stress out lab mice, a lot. Inducing chronic stress and anxiety in these furry critters is how scientists explore the bodily and cognitive effects of stress and discover anti-anxiety ...

Our experiences leave traces in the brain, stored in small groups of cells called engrams. Engrams are thought to hold the information of a memory and are reactivated when we remember, which makes ...

Mice have far fewer metastable epialleles than expected, changing how scientists study nutrition, development, and epigenetics. (CREDIT: Freepik) Metastable epialleles may sound like complex science, ...