Arknights Endfield has 23 characters, each with a unique set of abilities. Learn about all of them from our guide here.

In this video I break down the biggest temperament differences I see between my male and female Dobermans, Draco and Katana.

In truth, it is not a paradox. The animals involved all seem perfectly eager participants in heterosexual behaviour, as well, so their reproduction is not compromised. It is, though, a puzzle—for ...

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

A wave of pseudoscientific papers has tried to dismantle one of biology’s most fundamental truths: only two sexes exist, male and female. These papers often claim that sex is a broad “spectrum,” and ...

The Hechinger Report covers one topic: education. Sign up for our newsletters to have stories delivered to your inbox. Consider becoming a member to support our nonprofit journalism. The teaching ...

Not only is this species new to science, but this remarkable individual is the first record of a rare biological phenomenon (bilateral gynandromorphism) in this previously unknown species. One of the ...

In the western forests of Thailand, a burrowing creature that was both male and female was discovered. Maria Krasnova via Unsplash As a scientist, discovering and describing a new species is rare.

College students are showing up with tote bags, wired ear buds and matcha lattes for a chance to win “performative male” contests that have popped up on campuses around the country. The goal in these ...

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs), but for other body organs it is of little help. A new study by the Max ...

Elise Huchard receives funding from CNRS and the French Agence Nationale pour la Recherche (ANR). Nikos Smit does not work for, consult, own shares in or receive funding from any company or ...

Hummingbirds are among the smallest birds, and they are known for being beautiful, petite, and fast. After all, they can beat their wings up to 80 times a second! Like many creatures in the animal ...