The evolution of sex remains one of biology's greatest puzzles. While sexual reproduction dominates across the animal kingdom ...

Add Yahoo as a preferred source to see more of our stories on Google. Getting the job done. A female Asian water dragon (Physignathus cocincinus) produced a daughter (left) without the assistance of a ...

CHICAGO (WLS) -- At six and a half feet long zebra sharks are one of the largest species at Chicago's Shedd Aquarium. The endangered animals, which are native to Indonesia, have been a fixture at the ...

An 8-year-old anaconda housed at the New England Aquarium in Boston gave birth this January, but these are no ordinary babies. The mother lives in an exhibit with only adult female snakes — making the ...

For the first time, scientists have induced facultative parthenogenesis, a form of asexual reproduction, in an animal that usually reproduces sexually. An estimated 76 percent of fruit flies can ...

In a shocking scientific development, an 11-year old stingray has given birth to a healthy offspring, despite having had no male contact in over nine years. Freckle, an Eagle Ray that lives at the Sea ...

After living alone in a Costa Rican zoo for 16 years, a biblical-like “miracle” happened: an 18-year-old female crocodile laid 14 eggs, despite never having a male partner. Seven eggs appeared to be ...