Million years of evolution have produced a dazzling variety of species, each uniquely adapted to its environment. A straightforward way to measuring biodiversity is by the number of species (taxonomic diversity). Recently, ...
Plants & Animals
Nov 24, 2021
0
4
Plump and ponderous, tardigrades earned the nickname "water bears" when scientists first observed the 0.02-inch-long animals' distinctive lumbering gaits in the 18th century. Their dumpy plod, however, raises the question ...
General Physics
Aug 27, 2021
3
1406
For most vertebrates, losing a limb is permanent, but a lucky few species—such as salamanders and tadpoles—have the ability to completely regrow complex body parts. Understanding the molecular mechanisms underlying this ...
Evolution
Sep 16, 2020
0
335
Viruses are an inescapable part of life, especially in a global viral pandemic. Yet ask a roomful of scientists if viruses are alive and you'll get a very mixed response.
Plants & Animals
Jun 9, 2020
1
279
In what is likely the first study to look at how dietary preferences evolved across the animal kingdom, UA researchers looked at more than a million species, going back 800 million years. The team reports several unexpected ...
Plants & Animals
Aug 22, 2019
0
127
African apes adapted to living on the ground, a finding that indicates human evolved from an ancestor not limited to tree or other elevated habitats. The analysis adds a new chapter to evolution, shedding additional light ...
Evolution
Apr 30, 2019
3
721
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
An international group of researchers including biologists from the University of Maryland found that at least four species of marine ribbon worms independently evolved the ability to regrow a head after amputation.
Cell & Microbiology
Mar 6, 2019
6
1367
Rapidly increasing efforts to generate whole genome sequences for many vertebrate species are providing a significantly improved understanding of the biological differences among animals across the tree of life. In a new ...
Biotechnology
Jan 31, 2019
0
78
Genetic analysis of sticklebacks shows that isolated populations in similar environments develop in comparable ways. The basis for this is already present in the genome of their genetic ancestors. Evolutionary biologists ...
Evolution
Jan 30, 2019
0
6
