rats

Scientist holding white lab rat or mouse for experiment

Science & Technology

Scientists Grow Mini Human Livers From Stem Cells, Successfully Transplant Them In Rats

Doctor looks at brain scans

Researchers Successfully Repair Stroke-Damaged Brains Using Human Skin Cells

Obese, overweight woman measuring her waist size

Health & Medical

Study Suggests Maternal Obesity Can Accelerate Aging In Children

Two pet rats hiding

Rats Can Learn To Play Hide-And-Seek, Even Revel In Victory With ‘Joyful’ Squeaks

Brown rat

Study: Rats Better At Detecting Tuberculosis In Children Than Standard Test