For nearly 100 years, biologists have argued about how exactly natural selection can possibly work. If nature selects the individuals with the best genes, then why aren't all organisms the same? What maintains the genetic ...
Evolution
Dec 13, 2018
0
73
Environmental damage caused by human activity can reduce the number of plant and animal species dramatically. At the same time, very little is known about how biodiversity recovers after ecosystem pollution is curtailed and ...
Plants & Animals
Dec 5, 2018
0
74
Many wild and cultivated plants arise through the combination of two species. The genome of these so-called polyploid species often consists of a quadruple set of chromosomes—a double set for each parental species—and ...
Plants & Animals
Sep 25, 2018
0
82
Side-blotched lizards in most of the Mojave Desert have tan and brown markings that blend in well with their desert surroundings. On the Pisgah Lava Flow, however, one finds a very different population of side-blotched lizards, ...
Evolution
Sep 6, 2018
4
252
Gene editing technology could one day eliminate diseases currently considered incurable. Thanks to a new test developed by Sandia National Laboratories scientists, that day is closer to dawning.
Biotechnology
Aug 22, 2018
0
30
In 1859, when Charles Darwin first articulated the theory of evolution, he speculated that a process of natural selection led species to adapt to their environments over time. He believed traits that helped an organism survive ...
Evolution
Aug 3, 2018
4
467
Evolution may be responsible for a range of complex traits, including height and waist-to-hip ratio, and diseases such as schizophrenia, research from The University of Queensland shows.
Evolution
May 16, 2018
16
215
Genetics is a crapshoot. During sexual reproduction, genes from both the mother and the father mix and mingle to produce a genetic combination unique to each offspring. In most cases, the chromosomes line up properly and ...
Biotechnology
Apr 20, 2018
0
256
Scientists have found evidence of natural selection in a deep-sea fish species adapting to the depth of ocean that it inhabits.
Plants & Animals
Mar 5, 2018
1
61
In a study analyzing the genomes of 210,000 people in the United States and Britain, researchers at Columbia University find that the genetic variants linked to Alzheimer's disease and heavy smoking are less frequent in people ...
Evolution
Sep 5, 2017
2
132
