Sperm whales sleep vertically as if standing up, making them look like they're frozen mid-dance in the middle of the ocean.

Celebs often opt for assisted reproductive technologies to embrace motherhood after 35. Following actor Katrina Kaif's baby news, an expert shares her views.

Wambugu, 29, a university graduate who asked not to be fully identified, remembers the first time he walked into a private ...

An ocean tour group had a whale of a time when it was treated to a rare glimpse of a pair of sperm whales off the California coast.

This study shows that even when consumed in moderation, these foods can push our metabolism toward disease, disrupt our ...

Standing at the registry queue at 9.30am, we see more young men coming in, and the donor room, also known as the cabin, where ...

A viable male birth control exists. One that has already undergone years of successful human trials, with vastly fewer ...

This pilot study found that urinary metabolites of organophosphate pesticides were linked to reduced sperm motility in ...

A new U-M study discovers that maternal and paternal DNA have different centromeres--but that asymmetry is corrected in the earliest stages of a developing embryo.

Life cycles require the creation of an autonomous individual, that individual’s growth and that individual’s reproduction In ...

In a precise and quiet sequence that unfolded over 90 minutes, the two males alternated in mating with the female. The actual act lasted just 110 seconds—63 for the first male, 47 for the second.

When a woman becomes pregnant, the outcome of that pregnancy depends on many things - including a crucial event that happened ...