(PhysOrg.com) -- A process called ‘dark gulping’ may solve the mystery of the how supermassive black holes were able to form when the Universe was less than a billion years old.
Astronomy
Apr 23, 2009
10
0
If you are a male barn swallow in the United States or the Mediterranean with dark red breast feathers, you're apt to wow potential mates. But if you have long outer tail feathers in the United States, or short ones in the ...
Evolution
Aug 15, 2016
0
17
Barn swallows live almost everywhere on the planet, recognizable by their forked tail and agility in the air. Yet while they share these characteristics, these little birds often look slightly different in each place they ...
Plants & Animals
Jun 24, 2020
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386
The average human swallows 500 to 700 times a day. Imagine if each of those swallows were a struggle.
Cell & Microbiology
Aug 8, 2022
0
136
Most of our understanding about evolutionary changes and the formation of new animal species is based on the historical record. But a relatively new population of barn swallows in Argentina may help scientists see those changes ...
Evolution
Mar 17, 2017
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13
The evolution of barn swallows, a bird ubiquitous to bridges and sheds around the world, might be even more closely tied to humans than previously thought, according to new study from the University of Colorado Boulder.
Evolution
Nov 1, 2018
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247
Last summer, physicist Suzanne Amador Kane at Haverford College in Pennsylvania set up an experiment looking at how flocks of small birds on her campus -- swallows -- defend themselves from predators by ganging up and forming ...
Plants & Animals
May 4, 2010
2
0
A study by University of Adelaide researchers and Queensland Government scientists has revealed what south-east Queensland's rainfall was like over the last 7000 years – including several severe droughts worse and longer ...
Earth Sciences
Feb 15, 2019
0
321
Millions of birds die in the US each year as they collide with moving vehicles, but things have been looking up, at least in the case of cliff swallows. Today's swallows are hit less often, thanks to shorter wingspans that ...
Plants & Animals
Mar 18, 2013
4
0
Bird migration timing across North America has been affected by climate change, according to a study published Feb. 22 in the open access journal PLoS ONE.
Ecology
Feb 22, 2012
2
0
