(Phys.org)—Of the many microbes that – like almost all life – require iron, some live in iron-limited environments. What to do? Secrete siderophores, of course: small, high-affinity iron chelating compounds that scavenge ...
How a new method of inferring ancient population size revealed a severe bottleneck in the human population which almost wiped out the chance for humanity as we know it today.
Evolution
Aug 31, 2023
3
336
Darwinian evolution is the process by which natural selection promotes genetic changes in traits that favor survival and reproduction of individuals. How fast evolution happens depends crucially on the abundance of its "fuel": ...
Evolution
May 26, 2022
1
1092
University of Wisconsin-Madison scientists have found that a constantly fluctuating environment can enable some species to invade new areas by helping them maintain the genetic diversity they need to settle into their new ...
Evolution
Jun 22, 2020
0
112
It has long been suspected that spiders are one of the most important groups of predators of insects. Zoologists at the University of Basel and Lund University in Sweden have now shown just how true this is - spiders kill ...
Plants & Animals
Mar 14, 2017
0
3873
(Phys.org) —A team of researchers made up of members with diverse, multi-national backgrounds has found a way to construct population density maps using cellphone data. In their paper published in Proceedings of the National ...
New multi-scenario modelling of world human population has concluded that even stringent fertility restrictions or a catastrophic mass mortality would not bring about large enough change this century to solve issues of global ...
Environment
Oct 27, 2014
100
0
For the first time, the complete genomes of three separate populations of aye-ayes—a type of lemur—have been sequenced and analyzed in an effort to help guide conservation efforts. The results of the genome-sequence analyses ...
Biotechnology
Mar 25, 2013
0
0
A team of plant geneticists at Cold Spring Harbor Laboratory (CSHL) has successfully demonstrated what it describes as a "simple hypothesis" for making significant increases in yields for the maize plant.
Biotechnology
Feb 3, 2013
8
0
The timing of flowering in plants is critical. It can have profound effects on flower, fruit, and seed production, and consequently agricultural yields. This process is known to depend on daylight and temperature cues. However, ...
Biotechnology
Nov 11, 2012
0
0
