While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally appear. Whether these males retain ...

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Do Rare Males Retain Reproductive Function? While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally ...

Traits are often lost during evolution, either because they are no longer beneficial or because they are too costly to maintain. When this happens, it is generally believed that the genes underlying ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

On a still night, as the air is thick with silence, the sharp, whining buzz of a mosquito shatters the calm. These blood-sucking insects that disturb people’s deep slumber are also responsible for ...

Some female stick insects just don’t need males around, ever. They clone themselves, alter their pheromones to stay inconspicuous to unwanted suitors, and when males try to copulate with them, they ...

Among animals where sexual reproduction is common, there are quite a few species that reproduce only with females. In such species, females give birth to female offspring (this is called ...