(Phys.org)—A team of researchers with the Institute for Integrative Nanosciences in Germany has tested the possibility of using sperm cells to deliver drugs to cancerous tumors in female patients. In their paper uploaded ...
(Phys.org)—A biologist with the University of Zurich has discovered a species of dragonfly whose females play dead to avoid copulating with other males once her eggs have already been fertilized. In his paper published ...
Researchers have discovered what gives human sperm the strength to succeed in the race to fertilise the egg.
Mathematics
Mar 19, 2019
4
595
A new study reveals how sperm change their swimming patterns to navigate to the egg, shifting from a symmetrical motion that moves the sperm in a straight path to an asymmetrical one that promotes more circular swimming.
Cell & Microbiology
Nov 1, 2021
0
672
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.
Plants & Animals
Nov 18, 2015
0
254
New UC Riverside research makes it likely that proteins responsible for activating mosquito sperm can be shut down, preventing them from swimming to or fertilizing eggs.
Cell & Microbiology
Mar 16, 2023
2
107
Evolution works in mysterious ways, especially when it comes to sex.
Plants & Animals
May 24, 2017
1
315
Male Callosobruchus chinensis seed beetles have spines on their genitalia, which increase their fertilization success but injure a female's reproductive tract—especially a female of a related species called Callosobruchus ...
Evolution
May 19, 2015
0
101
Female promiscuity—something that occurs in a majority of species, including humans—results in the ejaculates from two or more males overlapping within her reproductive tract. When this happens, sperm compete for fertilization ...
Evolution
Sep 26, 2013
3
0
For University of Wisconsin-Milwaukee researchers studying the toxicity of gold nanoparticles - a minuscule material with potentially big biomedical applications - the road to a new medical advance may or may not be paved ...
Bio & Medicine
Jul 22, 2011
0
0
