When life on Earth began around 3.6 billion years ago, all organisms were small. Indeed, it took some 2.5 billion years to evolve any organism that grows larger than a single cell.
Plants & Animals
Feb 23, 2015
3
49
Smaller fish and invertebrates such as gazami crab and Japanese sardinella, are replacing larger, more commercially valuable fish such as largehead hairtail in the Bohai Sea in northeastern China.
Plants & Animals
Nov 13, 2019
0
96
Marine scientists have discovered that whale sharks eat plants, making the iconic fish the world's largest omnivore.
Plants & Animals
Jul 25, 2022
0
80
Despite popular metaphors and cartoons depicting straightforward "food chains," ecologists such as Brown University Professor Jon Witman typically doubt that they'll see predators in diverse tropical ecosystems have meaningful ...
Ecology
May 1, 2017
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210
(Phys.org) -- Phytoplankton blooms unexpectedly occurring under Arctic sea ice are an indication of how climate change is affecting the Arctic ecosystem, says a study published in the June 8 issue of Science.
Earth Sciences
Jun 12, 2012
11
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(PhysOrg.com) -- A series of photographs of cannibalism in polar bears have been released, and the researchers who witnessed the act think the rate of cannibalism may be increasing. They observed three instances of adult ...
A team of Earth scientists affiliated with multiple institutions in China and the U.S. has found that coastal algae blooms (also known as phytoplankton blooms) have been getting bigger over the past couple of decades. In ...
Over the last decade, scientists have discovered tiny pieces of plastic in many ocean waters, and even in deep-sea mud. However, they know very little about how microplastics are transported within the ocean. A new paper ...
Environment
Aug 17, 2017
0
138
Scientists studying the massive BP oil spill fear a decades-long, "cascading" effect on marine life that could lead to a shift in the overall biological network in the Gulf of Mexico.
Environment
Jul 18, 2010
32
1
Zebra mussels from the Caspian Sea, introduced to North America by accident, are becoming a veritable plague releasing toxic chemicals into the Great Lakes, Canadian biologists say.
Environment
Oct 1, 2011
6
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