Self-pollinating plant shows rapid loss of genetic variation
Without bumble bees, a flowering plant that can self-pollinate lost substantial genetic variation within only nine generations, an experimental study found.
Without bumble bees, a flowering plant that can self-pollinate lost substantial genetic variation within only nine generations, an experimental study found.
Evolution
Aug 10, 2022
0
1960
Similar to humans, chimpanzees use communication to coordinate their cooperative behavior—such as during hunting. When chimpanzees produce a specific vocalization, known as the "hunting bark," they recruit more group members ...
Plants & Animals
Jul 29, 2022
0
243
The discovery in 2019 of a lone small female tortoise living on one of the most inaccessible islands of the Galapagos Islands has baffled evolutionary biologists. Only one other tortoise, a large male discovered in 1906, ...
Evolution
Jul 19, 2022
0
134
Evolution has long been viewed as a rather random process, with the traits of species shaped by chance mutations and environmental events—and therefore largely unpredictable.
Plants & Animals
Jul 18, 2022
1
1271
Hundreds of millions of years ago, microbes and plants might have given insects an evolutionary advantage by passing genes to them through horizontal gene transfer. In a study published in the journal Cell on July 18, researchers ...
Evolution
Jul 18, 2022
0
62
Michigan State University's renowned Long-Term Evolution Experiment—a remarkable 34-year biological drama in flasks, with bacteria competing for resources and fighting for dominance—is itself evolving.
Evolution
Jul 13, 2022
0
74
Andrew Gallup, an evolutionary biologist with the Psychology and Evolutionary Behavioral Sciences Program at SUNY Polytechnic Institute in New York has published a paper in the journal Animal Behavior outlining research into ...
Giraffes have the highest blood pressure of all mammals—up to 300/200, more than double that of a typical human. But pregnant giraffes don't suffer from pre-eclampsia, a dangerous disorder caused by hypertension.
Evolution
May 20, 2022
0
35
Jacob Steenwyk, a graduate student in biological sciences, and collaborators at Vanderbilt, Tel Aviv University and University of Wisconsin-Madison measured the coevolution of pairs of genes shared across budding yeasts to ...
Evolution
May 4, 2022
0
87
We live in a world made and run by RNA, the equally important sibling of the genetic molecule DNA. In fact, evolutionary biologists hypothesize that RNA existed and self-replicated even before the appearance of DNA and the ...
Bio & Medicine
May 2, 2022
0
1882