The offspring of two horses will be a horse, and the offspring of two donkeys will be a donkey. But the offspring of a horse and a donkey will be a mule. And most mules are infertile, so mules are not a species.
Plants & Animals
Nov 24, 2021
1
427
For the first time, researchers have constructed a detailed 3D structure of human SAGA, a 20-piece molecular machine crucial to human life.
Molecular & Computational biology
Nov 23, 2021
0
50
Monarch butterflies and their close relatives thrive on poisonous milkweed, thanks to genetic mutations that block the effects of the plant's toxins while allowing the poisons to accumulate in the caterpillar or adult insects ...
Plants & Animals
Nov 22, 2021
1
293
Carotenoids are the underlying pigment for much of the enormous variety of color found across birds and form the basis for the colors red, yellow and orange. In a study published in Current Biology, researchers from Uppsala ...
Plants & Animals
Oct 26, 2021
0
74
Sexual conflict in fruit flies is governed by specifically wired neurons in the brain which have been pinpointed by scientists at the University of Birmingham, UK.
Molecular & Computational biology
Oct 21, 2021
0
138
Tangles in unwound DNA can create mutational hotspots in the genomes of bacteria, according to a new study by the Milner Centre for Evolution at the University of Bath.
Molecular & Computational biology
Oct 19, 2021
0
96
A recent statistical study has revealed some of the constraints and directions in the evolution of the structure and function of proteins. Better models of protein structural dynamics may allow researchers to understand more ...
General Physics
Oct 14, 2021
0
93
Individual zebrafish (Danio rerio) exhibit predictable behavioral responses to certain visual stimuli that are sufficient to explain the collective behavior of the animals—even in their larval stage. Genetic mutations associated ...
Molecular & Computational biology
Oct 13, 2021
0
42
Understanding how malaria parasites evolve after a human is bitten by an infected mosquito is very difficult. There can be billions of individual parasites in a patient's bloodstream and traditional genetic sequencing techniques ...
Evolution
Oct 13, 2021
1
35
The change of genetic information over time is a key factor for evolutionary adaptations with which living beings can adapt to changes in their environment. On the one hand, genetic variability arises in the course of reproduction, ...
Evolution
Oct 7, 2021
0
48
