"Hundreds of thousands" of fish have died in drought-stricken Australia in the last few days and more mass deaths are likely to occur, the authorities warned Tuesday.
Environment
Jan 29, 2019
0
567
A high-flying duck species reaches altitudes of up to 6,800 metres (22,000 feet) to cross the Himalayas, new research shows.
Plants & Animals
Sep 5, 2017
0
551
Earth's oxygen levels rose and fell more than once hundreds of millions of years before the planetwide success of the Great Oxidation Event about 2.4 billion years ago, new research from the University of Washington shows.
Earth Sciences
Jul 9, 2018
1
169
Any animal ascending a mountain experiences a double whammy of impediments: The air gets thinner as it also becomes colder, which is particularly problematic for creatures struggling to keep warm when less oxygen is available. ...
Plants & Animals
May 27, 2022
0
225
Oxygen is critical for life, but what promoted the first rise in atmospheric oxygen on Earth and precisely when it happened have been challenging scientists for the last 70 years.
Earth Sciences
Feb 28, 2022
4
1281
We and all other animals wouldn't be here today if our planet didn't have a lot of oxygen in its atmosphere and oceans. But how crucial were high oxygen levels to the transition from simple, single-celled life forms to the ...
Earth Sciences
Jan 3, 2018
0
663
Not long after the dawn of complex animal life, tens of millions of years before the first of the "Big Five" mass extinctions, a rash of die-offs struck the world's oceans. Then, for reasons that scientists have debated for ...
Ecology
Oct 5, 2021
1
1394
The rise of oxygen is one of the biggest puzzle in Earth's history. Our planet's atmosphere started out oxygen-free. Then, around 3.5 billion years ago, tiny microbes called cyanobacteria (or blue-green algae) learned out ...
Earth Sciences
Jun 20, 2014
15
0
(Phys.org)—As electricity travels from power plants and into homes, a large amount of the initial energy dissipates as heat along the way. This inefficiency comes from a resistance to current inherent to the metallic cables ...
Superconductivity
Sep 4, 2012
4
0
(PhysOrg.com) -- Iain Stewart, a professor of geoscience at Plymouth University, spent the weekend carrying out an experiment in Cornwall at the Eden Project. Stewart was locked in an airtight chamber for 48 hours with nothing ...
