Scientists have uncovered a previously unknown cluster of brain cells that may help explain differences in social behavior ...

Dr Louise Newson is bringing her UK stage tour, Breaking the Cycle: The Power of Hormones, to Salisbury City Hall in June.

Brookfield Zoo, which has cared for generations of polar bears, hopes to offer guidelines for an area where mothers den at ...

Most pet owners know the benefits of spaying female dogs and cats. Surgical removal of the ovaries and uterus not only ...

For the first time, we know more than we ever expected to know about the sex lives of the majestic beluga whale. It's ...

In the icy waters of Alaska’s Bristol Bay, a new study reveals how a small population of beluga whales (Delphinapterus leucas) survive the long haul through a surprising strategy: they mate with ...

Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study ...

Believe it or not, but ducks have a reputation for the unexpected: bizarre and intricate mating anatomy. According to ...

The findings shed new light on human reproduction and suggest pathways for developing treatments to lower the risk of ...

Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to ...

New research from James Cook University has made the extraordinary discovery that epaulette sharks can reproduce and lay eggs ...

A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan ...