image: Nest male courts female. This material relates to a paper that appeared in the 23 May 2018, issue of Science Advances, published by AAAS. The paper, by Michael Taborsky at University of Bern in Hinterkappelen, Switzerland, and colleagues was titled, "Alternative male morphs solve sperm performance/longevity trade-off in opposite directions." view more
Credit: Michael Taborsky