Mammals
Egyptian Spiny Mouse
Acomys cahirinus · also called Cairo spiny mouse, common spiny mouse
Grabbed by a predator, an Egyptian spiny mouse can leave a patch of skin behind and bolt to safety, then heal the wound with remarkably little scarring.
Overview
The Egyptian spiny mouse, Acomys cahirinus, is a Least Concern rodent of the rocky deserts of northern Africa and the Middle East. Its spiny back hairs, easily torn skin, and unusual powers of tissue repair make it one of the most intriguing small mammals in medical research.
A mouse that heals
Most mammals scar when badly wounded; the spiny mouse can rebuild tissue instead, which is why scientists study it closely.
Status
Least Concern, common across much of its range.
Egyptian Spiny Mouse: common questions
Why is it called a spiny mouse?
It has stiff, spine-like hairs on its back, though they are far softer and less sharp than the quills of a porcupine or hedgehog.
Can the Egyptian spiny mouse really regrow tissue?
Yes, it can heal wounds and regrow tissue, such as holes made in the ear, with much less scarring than most mammals.
Are baby spiny mice born helpless?
No, they are born furred with their eyes open and are able to move about within hours.
Where is the Egyptian spiny mouse found?
It is found in rocky desert habitat in northern and northeastern Africa and parts of the Middle East.