Jellyfish and flies use the same hormone when they’ve had enough to eat
The regulation of hunger may go back to the base of the animal family tree. Enlarge / A Moon jellyfish. (credit: Dan Kitwood / Getty Images) The sensation of hunger seems pretty simple on the surface, but behind the sce.....»»
Fruit flies give further insight into evolution of male genitalia driven by sexual selection
Fruit flies have provided scientists with new insight into the genetic basis for the rapid evolution of male external genitalia driven by sexual selection......»»
Pituitary gland"s embryonic origins may lead to new insights on growth hormone deficiency
An unexpected observation has led researchers at the Weizmann Institute of Science to challenge a 200-year-old doctrine regarding the embryonic origins of the pituitary gland......»»
Image: Cygnus flies to the International Space Station
In this image from Jan. 30, 2024, an uncrewed Cygnus cargo spacecraft launches atop a SpaceX Falcon 9 rocket, starting its journey to the International Space Station......»»
Repeated sexual failures cause social stress in fruit flies
Repeated failures to reproduce make fruit flies stressed and frustrated, which in turn makes them less resilient to other types of stress, Julia Ryvkin at Bar-Ilan University and colleagues report in PLOS Genetics......»»
Daily Telescope: In which the space station proves it truly is international
"We had parked our canal boat for the night..." Enlarge / The International Space Station flies high. (credit: Kent Christian) Good morning. It's January 18, and today, we're looking at the brightest object made by human.....»»
Spotify calls Apple’s 27% cut of purchases outside the App Store ‘outrageous’; urges EU to ‘act switftly’
Apple announced yesterday that US App Store developers may link to alternative payment methods but will still have to pay up to a 27% commission. Now Spotify has shared an official statement on the matter saying the move “flies in the face of the c.....»»
Daily Telescope: A beautiful supernova remnant from an uncertain age
Sometimes astronomy can be a bit imprecise. Enlarge / Behold, the Jellyfish Nebula. (credit: Hamza Syed) Welcome to the Daily Telescope. There is a little too much darkness in this world and not enough light, a little.....»»
When bad cells go good: Harnessing cellular cannibalism for cancer treatment
Scientists have solved a cellular murder mystery nearly 25 years after the case went cold. Following a trail of evidence from fruit flies to mice to humans revealed that cannibalistic cells likely cause a rare human immunodeficiency. Now the discover.....»»
Jellyfish regenerate lost tentacles, and now we know how
Jellyfish regeneration looks a lot like that of amphibians and other animals. Enlarge (credit: Gerard Soury) The mythical Hydra may have been able to grow one of its many heads back every time it suffered a decapitation,.....»»
Apple preharvest drop not linked to xylem functionality
Heat stress induces and accelerates leaf senescence, which is characterized by a loss of chlorophyll and cellular membrane deterioration, as well as oxidative damage). Leaf senescence can be exacerbated by the hormone ethylene, which acts as a signal.....»»
How jellyfish regenerate functional tentacles in days
At about the size of a pinkie nail, the jellyfish species Cladonema can regenerate an amputated tentacle in two to three days—but how? Regenerating functional tissue across species, including salamanders and insects, relies on the ability to form a.....»»
Blue Origin’s suborbital rocket flies for first time in 15 months
An engine failure destroyed a New Shepard rocket on its previous flight. Enlarge / Blue Origin's New Shepard booster comes in for landing in West Texas at the conclusion of Tuesday's suborbital flight. (credit: Blue Origin).....»»
Study identifies organic alternative for fighting cattle-pestering flies
When cattle are fighting flies in the summer, they gather in tight bunches, leading them to eat less while experiencing more stress and discomfort. Beef producers have limited options for controlling the flies that pester their cattle. Moreover, exis.....»»
Fruit fly study finds blue light exposure may affect processes related to aging
In a study on fruit flies, daily low-intensity blue light exposure (BLE), similar to that experienced daily by billions of humans in the form of LED lighting and device screens, changed flies at the sub-cellular level, affecting processes related to.....»»
Scientists discover plant hormone that boosts growth by 30%
Scientists from NUS and the Singapore Center for Environmental Life Sciences Engineering (SCELSE) have uncovered one of nature's most potent tools in an arsenal to combat today's agricultural challenges: agro-microbials—or agro-chemicals of natural.....»»
Agronomists save tomatoes from toxic aluminum with melatonin
RUDN University agronomists and colleagues from China and Iran have helped tomatoes cope with the toxic effect of aluminum in acidic soils with the help of melatonin. This hormone contributes to nitric oxide production, blocking the toxic metal and p.....»»
Fallen autumn leaves are a valuable resource. Here"s how to make the most of them
Towards the end of autumn the days get colder and shorter. This triggers the reduction of the plant hormone auxin in most deciduous trees, which start to shed their leaves......»»
‘Always a sight to see!’ NASA’s Super Guppy aircraft flies again
Aviation enthusiasts will be delighted to learn that NASA's extraordinary Super Guppy aircraft recently took to the skies again......»»
Millions of sterile fruit flies are being dropped on LA to fight an infestation
The citrus trees at C&S Nursery in Baldwin Hills would normally be full of passionfruit, kumquats and other fruits this time of year. But last month, employees stripped dozens of them and placed them at the rear of the lot, away from the public, as p.....»»
After leading NASA’s mission to Pluto, Alan Stern flies to space himself
Virgin Galactic is finally settling into a routine after years of delays. Enlarge / The view of Earth's curved horizon from Virgin Galactic's SpaceShipTwo rocketplane. (credit: Virgin Galactic) It has been fun to watch V.....»»