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 ...

SYDNEY, June 9 (UPI) -- Australian scientists have discovered that for at least one lizard species, whether baby lizards are male or female depends upon the size of the egg. "We were astonished," said ...

Identifying snake and lizard eggs can be tricky. Experts look at size, shape, and color. Snake eggs are usually larger and white. Lizard eggs vary in color and shape. Shell texture and incubation ...

The size of a lizard's abdomen influences how many eggs she will produce at a time, say Australian and Chinese scientists. This may ensure she doesn't overload herself with eggs, which would make it ...

Female Sceloporus undulatus producing two clutches of eggs under controlled laboratory conditions increased egg and hatchling size but decreased the number of eggs in the second clutch. The females ...

Whether baby lizards will turn out to be male or female is a more complicated question than scientists would have ever guessed, according to a new report published online on June 4th in Current ...

Whether baby lizards will turn out to be male or female is a more complicated question than scientists would have ever guessed, according to a new report. The study shows that for at least one lizard ...