29/04/2019

An important function of non-nucleated sperm

Some animals form characteristic infertile spermatozoa called parasperm, which differ in size and shape compared to fertile sperm produced by single males. Species that have been reported to produce parasperm include snails, ...

Scientists planning now for asteroid flyby a decade away

On April 13, 2029, a speck of light will streak across the sky, getting brighter and faster. At one point it will travel more than the width of the full Moon within a minute and it will get as bright as the stars in the Little ...

10,000 evacuated in Canada floods as rescuers search for pets

More than 10,000 people have been evacuated from their homes in eastern Canada in recent days as spring floods broke record levels set in 2017, officials said Monday, warning that it could take weeks for the waters to recede.

Plant cells eat their own... membranes and oil droplets

Biochemists at the U.S. Department of Energy's Brookhaven National Laboratory have discovered two ways that autophagy, or self-eating, controls the levels of oils in plant cells. The study, published in The Plant Cell on ...

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