In arid parts of central Australia, temperature plays a big part in determining whether central bearded dragon embryos emerge from their eggs as male or female. While the sex of mammals and birds is ...

Scientists in Thailand have identified a new burrowing spider species, Damarchus inazuma, featuring a rare bilateral gynandromorph. This unique specimen displays distinct male and female ...

Scientists in Thailand have unearthed a remarkable new spider species, Damarchus inazuma, exhibiting perfect gynandromorphism ...

Michigan State University scientists have pinpointed the molecular "switch" that supercharges sperm for their final sprint to an egg—a breakthrough that could reshape infertility treatments and pave ...

It’s important to know which tropical fish can happily share a tank - and which should be kept separately. Whether its lovingly-kept garden ponds filled with Koi Carp to the humble goldfish bowl ...

A trans woman has been jailed for 21 months after tricking a young man by concealing male genitalia during sex acts carried out while they were on a date. Ciara Watkin, 21, a biological male with ...

Researchers have identified that the precisely timed transcription of two genes named grim and reaper is responsible for the targeted death of neurons within the developing nervous system of female ...

Objective To quantify US female and male Olympic athletes’ longevity and the years of life lost or saved due to multiple causes of death as compared with the US general population. Methods Former US ...

A newly discovered species, Damarchus inazuma, displays a rare split-sex trait known as gynandromorphism and takes its name from a shape-shifting anime character. Jenny Lehmann is an assistant editor ...

“After considering these other scenarios, we argue that mating is the most likely scenario to have caused the recurrent pattern of injuries,” write the study authors. According to their simulations, ...

Ironically, though, that’s wonderful news for palaeontologists, as the love scars left behind by these prehistoric couplings ...