People are having children later than ever before. The average age of new parents in the United States has been rising for at least the past half century.
Cell & Microbiology
Mar 3, 2022
0
70
In two sets of procedures between October 2021 and February 2022 the BioRescue consortium created two new northern white embryos, bringing the total to 14. Oocytes (egg cells) were collected from northern white rhino Fatu ...
Plants & Animals
Feb 17, 2022
0
130
Researchers from KeyGene and Wageningen University & Research (WUR), in collaboration with colleagues from Japan and New Zealand, have discovered a gene that will make it possible to produce seeds from crops that are genetically ...
Plants & Animals
Jan 6, 2022
0
130
Researchers at the University of Bonn have developed a method to generate embryo-like cell complexes from the stem cells of mice. The method provides new insights into embryonic development. In the medium term, it might also ...
Cell & Microbiology
Dec 16, 2021
0
29
Virgin birth—which involves the development of an unfertilised egg—has preoccupied humans for eons. And although it can't happen in mammals, it does seem to be possible in other animals with backbones (vertebrates), such ...
Plants & Animals
Nov 4, 2021
1
37
Why do women over 35 have more difficulty getting pregnant? After discovering one of the causes of age-related female infertility, researchers at the University of Montreal Hospital Research Centre (CRCHUM) suggest that it ...
Cell & Microbiology
Aug 23, 2021
0
130
It's a tough time to be a shark. Pollution, industrialized fishing, and climate change threaten marine life, and the populations of many top ocean predators have declined in recent years. In addition to studying sharks in ...
Plants & Animals
May 13, 2021
0
39
Scientists from Nagoya University, Yokohama City University and Chubu University have developed a system which enables the live imaging of the formation of the female gamete in plants.
Plants & Animals
Apr 2, 2021
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12
A cast of so-called 'nurse cells' surrounds and supports the growing fruit fly egg during development, supplying the egg—or 'oocyte'—with all the nutrients and molecules it needs to thrive. Long viewed as passive in this ...
Cell & Microbiology
Mar 22, 2021
0
561
The immense diversity in the living world and how it came into being has always been a subject of human enquiry. After centuries of playing detective in search of the basis of the parities and disparities that we see among ...
Evolution
Mar 18, 2021
0
5
