Feat suggests embryonic stem cells are less flexible in primates than mice. (p. 15)

A compound that blocks DNA unwinding can spur production of a critical brain protein in mice, leading to hope for a therapy for Angelman syndrome. (p. 8)

Naked mole rats don’t feel the burn of acid thanks to tweaks in a protein involved in sending pain messages to the brain. (p. 17)

Eyes can be grown in a frog’s gut by changing cells’ electrical properties, scientists find, opening up new possibilities for generating and regenerating complex organs. (p. 5)

Little hairlike appendages in brain cells control weight by sequestering an appetite hormone.

Cells unleash proteins to cage unwanted invaders. (p. 14)