(Phys.org) —Genetic engineering is one of the great achievements of modern science, allowing for the insertion or deletion of genes in order to control an organism's characteristics and behaviors. However, genetic engineering ...
White-necked jacobin hummingbirds sport a colorful blue-and-white plumage as juveniles. When they grow into adulthood, males retain this dazzling pattern, while females develop a more "muted" palette of green and white—at ...
Plants & Animals
Sep 7, 2022
1
194
Compared to other animals, chimpanzees show tremendous variation across groups in their behavior—from the types of tools they use in their feeding behavior to the specific gestures they use in communication. Research in ...
Plants & Animals
Mar 7, 2019
2
93
Johns Hopkins scientists report what is believed to be the first evidence that complex, reversible behavioral patterns in bees – and presumably other animals – are linked to reversible chemical tags on genes.
Plants & Animals
Sep 16, 2012
2
0
Using simple robots to simulate genetic evolution over hundreds of generations, Swiss scientists provide quantitative proof of kin selection and shed light on one of the most enduring puzzles in biology: Why do most social ...
Evolution
May 3, 2011
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28
(PhysOrg.com) -- Cheaters may prosper in the short term, but over time they seem doomed to fail, at least in the microscopic world of amoebas where natural selection favors the noble.
Evolution
Oct 1, 2009
0
0
(PhysOrg.com) -- One of the perplexing questions raised by evolutionary theory is how cooperative behavior, which benefits other members of a species at a cost to the individual, came to exist.
Evolution
Apr 6, 2009
8
0
An international team of bee researchers involving Heinrich Heine University Düsseldorf (HHU) has integrated a calcium sensor into honey bees to enable the study of neural information processing including response to odors. ...
Ecology
Mar 3, 2023
0
109
The behavior of sperm cells is due, in part, to the individual DNA make-up of these cells, rather than only to the genetics of males, finds a team of scientists. Its results, which provide a new understanding of the competition ...
Cell & Microbiology
Nov 15, 2022
0
125
Ambrosia beetles practice active agriculture: A bark beetle species breeds and cultivates food fungi in its nests and ensures that so-called weed fungi spread less. This has now been experimentally demonstrated for the first ...
Plants & Animals
Nov 2, 2022
0
553
