New findings add a surprising twist to the already complex mechanism that determines whether reptile embryos develop to be males or females. An egg-laying lizard found in the hills of southeastern ...

The Florida Keys mole skink is one of the rarest and most mysterious of Florida natives. This small, five-inch-long lizard has shiny, armor-like scales, a pinkish-red tail and a brown body. It's a ...

The lizards are all female and parthenogenetic, meaning their eggs develop into embryos without fertilization. But before the eggs form, Baumann’s team discovered, the females’ cells gain ...