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Sperm counts are declining globally, and nearly one in six people will experience infertility at some point in their life. Former Bachelor star Colton Underwood is one of them. Here, he shares his experience with infertility and entering "sperm rehab."

While the metaphor of an active sperm and a passive egg has long been used to describe fertilization, a more gender-egalitarian approach is circulating.

It can stretch up to nine times your body length (if you’re a barnacle); be a detachable tentacle covered in suckers (if you’re an argonaut octopus); or

Artificial Neural Networks have reached ‘Grandmaster’ and even ‘super-human’ performance’ across a variety of games, from those involving perfect-information, such as Go ((Silver et al. (2016)); to those involving imperfect-information, such as ‘Starcraft’ (Vinyals et al. (2019)). Such technological developments from AI-labs have ushered concomitant applications across the world of business, where an ‘AI’ brand-tag is fast becoming ubiquitous. A corollary of such widespread com...

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Are falling sperm counts really an ‘existential threat’ for humanity? Rachel E. Gross The decline has been called a ‘canary in the coal mine’ - Getty Images/iStockphoto Male scientists have long waxed poetic on the contents of their testes. “Sperm is a drop of brain,” wrote the ancient Greek writer Diogenes Laertius. Leonardo da Vinci drew the penis with a sperm duct that connected directly to the spinal cord. The 17th-century microscopist Antonie van Leeuwenhoek cla...

Reports of a decline in male fertility rely on flawed assumptions, a new study contends.