Really big brains can evolve only if constraints on energy intake are lifted
As a species we're so brain-proud it doesn't occur to most of us to ask whether a big brain has disadvantages as well as cognitive benefits.
As a species we're so brain-proud it doesn't occur to most of us to ask whether a big brain has disadvantages as well as cognitive benefits.
Evolution
Dec 21, 2016
3
1420
We often believe computers are more efficient than humans. After all, computers can complete a complex math equation in a moment and can also recall the name of that one actor we keep forgetting. However, human brains can ...
Nanophysics
Aug 8, 2023
2
120
What can't graphene do? You can scratch "detect cancer" off of that list.
Bio & Medicine
Dec 19, 2016
0
567
The story of the sodium-potassium pump has strong ties to Denmark. In 1997, the Danish scientist Jens Chr. Skou received the Nobel Prize in Chemistry for his discovery, and over the years, research on the pump has remained ...
Biochemistry
Sep 20, 2013
0
3
For years, scientists assumed that humans devote a larger share of their daily calories to their brains than other animals. Although the human brain makes up only 2 percent of body weight, it consumes more than 25 percent ...
Evolution
Oct 31, 2017
0
436
How did human intelligence evolve? Anthropologists have studied this question for decades by looking at tools found in archaeological digs, evidence of the use of fire and so on, and changes in brain size measured from fossil ...
Archaeology
Jan 27, 2020
0
180
Smartphones, laptops and smartwatches consume vast quantities of energy, yet only around half of this energy is actually used to power important functions. And with billions of these devices in use worldwide, a significant ...
Nanophysics
May 12, 2020
0
371
A computer built to mimic the brain's neural networks produces similar results to that of the best brain-simulation supercomputer software currently used for neural-signaling research, finds a new study published in the open-access ...
Computer Sciences
Jul 11, 2018
0
34
By studying hibernation, a Duke University team is providing a window into why humans sleep. Observations of a little-known primate called the fat-tailed dwarf lemur in captivity and the wild has revealed that it goes for ...
Plants & Animals
Sep 4, 2013
0
1
There's nothing like a steaming cup of joe to give your morning a quick boost. Now, there's yet another reason to love the beverage. Today, researchers report the first application of used coffee grounds as environmentally ...
Materials Science
Mar 20, 2022
0
274