Scientists have reconstructed the tree of life for all major lineages of perching birds, also known as passerines, a large and diverse group of more than 6,000 species that includes familiar birds like cardinals, warblers, ...
Ecology
Apr 1, 2019
0
213
To determine where a sound is coming from, animal brains analyze the minute difference in time it takes a sound to reach each ear—a cue known as interaural time difference. What happens to the cue once the signals get to ...
Plants & Animals
Mar 18, 2019
0
480
The insects known as Hemiptera are not a particularly glamorous bunch. This group includes stink bugs, bed bugs, litter bugs, scale insects and aphids. Their closest relatives are thrips, bark lice and parasitic lice. But ...
Evolution
Nov 26, 2018
0
266
Whether human or baboon, it helps to have friends. For both species, studies have shown that robust social networks lead to better health and longer lives. Now, a team of University of Pennsylvania researchers has helped ...
Plants & Animals
Oct 1, 2012
1
0
A new study--which includes the first large-scale comparison of fungi that cause rot decay--suggests that the evolution of a type of fungi known as white rot may have brought an end to a 60-million-year-long period of coal ...
Biotechnology
Jun 28, 2012
5
0
(Phys.org) -- Nature teems with examples of evolutionary arms races between predators and prey, with the predator species gradually evolving a new mode of attack for each defensive adaptation that arises in the prey species.
Plants & Animals
Apr 17, 2012
0
0
(PhysOrg.com) -- Until a recent discovery, theories about the origins and evolutionary relationships of snakes barely had a leg to stand on.
Evolution
May 18, 2011
2
0
(PhysOrg.com) -- A new study of the behavior of marmots suggests that a willingness to accept some extent of bullying, rather than shying away from interactions that could lead to conflict, may be inherited.
It has been a basic principle of evolution for more than a century that plants and animals can adapt genetically in ways that help them better survive and reproduce.
Evolution
Jul 8, 2010
9
0
(PhysOrg.com) -- Scientists have long wondered how elaborate animal communication signals evolved, and while animal communication theory holds that many evolved from non-signaling behaviors, there has been little empirical ...
