For most animals, reproduction is straightforward: Some species lay eggs, while others give birth to live babies. But our recent research uncovered a fascinating mix between the two modes of ...

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 ...

Biologists studying an Australian lizard observed something no one had ever documented in a vertebrate before. A single female produced offspring through two different reproductive methods during the ...

Many adults that spent much time outdoors as kids have fond memories of the backyard wildlife that they would come in contact with. Before the electronic entertainment age in which we now live, many a ...