Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Eric's career includes extensive work in both public and corporate accounting with ...

Human Reproduction is a peer-reviewed scientific journal covering all aspects of human reproduction, including reproductive physiology and pathology, endocrinology, andrology, gonad function, ...

You may know it takes one sperm and one egg to make a baby but, if you're like most people, you might not remember much else about sperm from biology class. If infertility is an issue for you and your ...

In the animal kingdom, reproduction is a necessary part of species survival. Parthenogenesis, a form of asexual reproduction where embryos develop from unfertilized eggs, has been observed in captive ...

The intensification of livestock production systems is a prerequisite to meet the growing demand for animal products. Genetic selection, assisted reproductive technologies and optimized reproduction ...

The Tyrannosaurus at Spain’s Jurassic Museum of Asturias offer a speculative take on how dinosaurs mated. Mario modesto via Wikipedia under CC By-SA 3.0 Dinosaurs had sex. Fossil nests and eggs, as ...

For decades, scientists, policymakers, graziers and land managers have been locked in a surprisingly high-stakes debate over what defines a dingo. Are these wild canids their own species? Or are they ...

The flowerpot snake, one of the world's smallest snakes, has some unusual distinctions. Also known as the Brahminy blind snake, it's the only known snake species with three sets of chromosomes instead ...

What Is the Female Reproductive System? The female reproductive system is designed to carry out several functions. It produces the female egg cells, called the ova or oocytes, which are necessary for ...

You might think flowers don’t have much choice about who they mate with, given they are rooted to the ground and can’t move. But when scientists from Nagoya, Japan used powerful microscopes to study ...

Some female birds, reptiles and other animals can make a baby on their own. But for mammals like us, eggs and sperm need each other. Parthenogenesis could be the future for this California condor ...