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 ...

Molecule regulating sperm motility discovered

About 120 million unintended pregnancies occurred each year between 2015 and 2019 worldwide. While there are oral contraceptives for women, the development of oral contraceptives for men has not been successful. Now, a team ...

US zoo cites liver disease in baby panda's death

Veterinary pathologists on Thursday blamed liver disease brought on by insufficient oxygen for the sudden death of a six-day-old baby panda born at the National Zoo in Washington last month.

Climate change threatens domestic bee species

There are around 550 different bee species in Germany. Most of them are solitary bees. They don't live in large beehives like the honeybee, but each female bee often builds multiple nests and feeds her offspring alone. Solitary ...

Towards a new moth perfume

(Phys.org)—A single mutation in a moth gene has been shown to be able to produce an entirely new scent. This has been shown in a new study led by researchers from Lund University in Sweden. In the long run, the researchers ...

The secret of fertile sperm

To better understand the causes of male infertility, a team of Bay Area researchers is exploring the factors, both physiological and biochemical, that differentiate fertile sperm from infertile sperm. At the 58th Annual Biophysical ...

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