Archives
Screw-shaped bird sperm swim faster -- but it comes at a cost
The research was part of the thesis of PhD student Hanna Nyborg Støstad, investigating the peculiar spiral shape of songbird sperm. Støstad compared sperm cells of 36 bird species, from house sparrows to tree swallows, and found that species whose sperm had a particularly distinct spiral or corkscrew shape also had sperm with high average swimming speed. However, those species also tended to have high rates of abnormal or damaged sperm.
Latest Research Articles
Think the tick threat grows with the grass? Not necessarily
The future of agriculture is computerized
New study questions effects of reintroducing top predators
Thirteen new ant species discovered in Hong Kong
New Bombali ebolavirus found in Kenyan bat
Coral study traces excess nitrogen to Maui wastewater treatment facility
Wild bees flock to forested areas affected by severe fire
Fungal mating: Next weapon against corn aflatoxin?
Omega-3 fatty acid supplements, hypothyroidism could lower risk of T-zone lymphoma in dogs
Mosses -- Dynamic and built to last
Chicago tops list of most dangerous cities for migrating birds
Marine protected reserves do more than restore fish
MOST POPULAR
-
New Tylosaurus Rex Mosasaur Discovery Reveals a Skull-Crushing Sea Predator From the Dinosaur Age
-
White Hydrogen Discovery in Canada Reveals Massive Underground Energy Potential
-
Global Sea Level Rise Is Rising Faster Than Expected Due to Ocean Warming and Ice Sheet Melt
-
Wildlife Behavior Changes Study Reveals How Human Presence Affects Wildlife Worldwide
-
Why Mother Animals Abandon Their Offspring: The Case of Punch, an Infant Macaque
