The first chromosome level genome sequences for great hammerhead and shortfin mako sharks have shown that both species have experienced major population declines over a 250,000-year history. Low genetic diversity and signs ...
Ecology
Jan 4, 2023
0
33
A new method can illuminate the identities and activities of cells throughout an organ or a tumor at unprecedented resolution, according to a study co-led by researchers at Weill Cornell Medicine, NewYork-Presbyterian and ...
Biotechnology
Jan 2, 2023
0
284
The potentially lethal lymphoproliferative virus (LPDV) is becoming more prevalent among wild turkeys in the Northeast. With wild turkey populations growing, the risk of disease transmission between them, their domesticated ...
Plants & Animals
Dec 15, 2022
0
16
Northwestern University researchers have discovered a previously unknown mechanism that drives aging.
Biotechnology
Dec 9, 2022
0
737
In the vast oceans, one would assume their inhabitants can travel far and wide and, as a result, populations of a species would mix freely. But this doesn't appear to be the case for a vital forage fish called the sand lance.
Plants & Animals
Dec 6, 2022
0
40
In mammals, the distinction between male and female at the chromosomal level is due to the X and Y chromosomes. Typically, females have two X chromosomes (XX) while males have an X and a Y chromosome (XY). The Sry gene on ...
Plants & Animals
Nov 28, 2022
0
81
Two decades after having described a new Anaconda species based on morphological characteristics, a team guided by David Tarknishvili succeeded in extracting DNA from some old, pre-existing tissue samples. They used these ...
Plants & Animals
Nov 21, 2022
0
1635
Two spinner dolphins died from toxoplasmosis after becoming infected with the parasite Toxoplasma gondii, according to researchers at the University of Hawaiʻi at Mānoa Health and Stranding Lab. One dolphin was stranded ...
Ecology
Nov 18, 2022
0
25
While the physical differences between humans and non-human primates are quite distinct, a new study reveals their brains may be remarkably similar. And yet, the smallest changes may make big differences in developmental ...
Evolution
Nov 8, 2022
1
110
A team of researchers affiliated with multiple institutions in Turkey, working with one colleague from Austria and two from Sweden, has found evidence via genetic analysis of a blend of demographics in Neolithic people living ...
