Related topics: females · sperm

Study: Contraception is the future of rat control

University of Copenhagen researchers have gotten yeast cells to brew triptolide, a substance typically extracted from a rare Chinese plant. Their research makes it possible to control rats with the substance on a large scale—both ...

Whales give up singing to fight for love

Male whales along Australia's eastern seaboard are giving up singing to attract a mate, switching instead to fighting their male competition.

Study finds endangered elephants regularly leaving protected area

For the sake of shielding vulnerable and endangered wildlife from the existential risks posed by people, some governments and agencies have established so-called protected areas that are designed to be free of human encroachment ...

Economist tracks 'nepo baby' effect on young Americans' earnings

The children of stars who enter show business have come to be referred to as "nepo[tism] babies" in popular media. But Hollywood isn't the only industry where it pays to have a well-positioned parent. According to Matthew ...

Polar bear in fatal Alaska attack was in poor health

A polar bear that killed a young mother and her baby last month in western Alaska was likely an older animal in poor physical condition, but tests came back negative for pathogens that affect the brain and cause aggressive ...

Wolves of the wilderness are calling. Will your dog answer?

Researchers of the Department of Ethology, Eötvös Loránd University (ELTE) have been investigating dogs' reactions to wolf howls. Are there dogs that are more prone to reply with howling? Are these dogs genetically closer ...

Signal transmission in the immune and nervous system through NEMO

A cascade of various events is required for the transmission of signals within cells. These include several modifications of proteins to switch their function on or off. In order to ensure rapid signal transmission, signaling ...

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