For example, out on the African savanna, you may see a pair of giraffes intertwining their necks, sometimes brushing their ...

While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these ...

Kate Rodriguez-Clark is an animal matchmaking guru. Among her responsibilities as a population ecologist for the Smithsonian, ...

The first evidence pointing to the unique daily problems faced by alpha male baboons arrived in 2011, when Gesquiere and colleagues identified that the animals displayed higher amounts of ...

Here are five more ways that humans have scuppered the love lives of animals.

Trump's executive order declares sex as "an individual's immutable biological classification as either male or female" and states that "gender identity" cannot be included in the definition of ...

Claims spread that definitions of "male" and "female" included in a January 2025 executive order that asserted sex is established at conception accidentally classified all Americans as women.

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters. A few hours after taking the oath of office Monday, President Donald Trump issued an ...

The Alabama legislation, which passed the Senate Thursday, would create legal definitions of male and female based on the reproductive organs at birth. At least nine other states have already ...