Researchers engineered a mouse with two additional limbs instead ... bioengineered embryos had genitals similar to two extra hind limbs. “I didn’t choose the project, the project chose me ...

The mouse had a raised, ulcerated mass on the flank of its right hind limb that measured 2.0 cm × 2.5 cm (Fig. 1). The lesion was first observed 15 d previously and had grown rapidly ...

"Our team has created a transgenic mouse model where we can activate specific nerves in the hind paws using blue light ... and developing a method to induce limb spasticity consistently.