Human cloning with Chinese characteristics
Chinese genetic scientists must not be put off sensitive research by ethical concerns, the team behind a controversial study on modified human embryos said Wednesday as debate erupted over the paper.
Apr 13, 2016
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Size matters when it comes to sperm dominance
A tiny fruit fly has the bizarre distinction of possessing the longest sperm of any animal—20 times the length of its own body and 1,000 times that of human sperm.
Human genome-editing research should proceed, say leading UK science bodies
A group of leading UK research organisations has today issued an initial joint statement in support of the continued use of CRISPR-Cas9 and other genome-editing techniques in preclinical research. This includes the use of ...
Discovery of nanotubes offers new clues about cell-to-cell communication
When it comes to communicating with each other, some cells may be more "old school" than was previously thought.
In battle of the sexes, a single night with a New York male is enough to kill
Men and women often enter relationships with different long-term goals. In the animal world, differences in approaches to reproductive success can lead to sexual conflict.
Sperm wars: Evolutionary biologist compiles international special issue on sperm competition
Why do male animals need millions of sperms every day in order to reproduce? And why are there two sexes anyway? These and related questions are the topic of the latest issue of the research journal Molecular Human Reproduction ...
Environmental hormones – tiny amounts, big effects
Empty nets and few species – environmental hormones are believed responsible for the diminishing numbers of fish. How damaging are these substances really, though? Studies that depict a complete picture of the lives of ...
New book explores evolution of human reproduction
Human beings would probably be known as pilosals rather than mammals if Carl Linnaeus had not been a proponent of breast-feeding. For social and political reasons, the famed taxonomist labeled the class of animals to which ...
Researchers detect little-known protein in vertebrate fertilisation process
Researchers from Heidelberg have decoded a previously unknown molecular mechanism in the fertilisation process of vertebrates. The team of scientists at the Center for Molecular Biology of Heidelberg University identified ...
Resurrecting ancient proteins, team finds just two mutations set stage for evolution of modern hormone signaling
Evolution, it seems, sometimes jumps instead of crawls. A research team led by a University of Chicago scientist has discovered two key mutations that sparked a hormonal revolution 500 million years ago.
