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
Some diseases which are fatal in one species can cause only mild discomfort in another—but it's hard for scientists to predict how lethal a disease will be if it leaps across species.
Ecology
Mar 28, 2019
0
17
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
Planthopper bugs may be small, but they attract mates from afar by sending vibrational calls along plant stems and leaves using fast, rhythmic motions of their abdomen. In a new study publishing March 12 in the open-access ...
Plants & Animals
Mar 12, 2019
0
136
The story that's often told about crocodiles is that they're among the most perfectly adapted creatures on the planet—living fossils that have remained virtually unchanged for millions of years.
Evolution
Feb 20, 2019
0
141
The first appearance of trilobites in the fossil record dates to 521 million years ago in the oceans of the Cambrian Period, when the continents were still inhospitable to most life forms. Few groups of animals adapted as ...
Archaeology
Jan 10, 2019
0
186
A new study by researchers at the University of Salford has shown that fossils are likely to be key to fulfilling a prediction made by Charles Darwin more than 160 years ago.
Paleontology & Fossils
Dec 12, 2018
8
146
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
Using DNA sequences for 402 of the 452 species of the world's "babblers," an international team from China, Sweden, Denmark, Switzerland and the USA have analysed the evolutionary relationships among these species. Many of ...
Plants & Animals
Nov 26, 2018
0
4
Within public relations, the standard practice of looking out for No. 1 and viewing relationships as sources of conflict and competition is defended by best-selling textbooks and a generation of research. A growing body of ...
Economics & Business
Jun 7, 2018
0
3
