sex
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Biology
Sex Chromosome Fight: How Competition Is Affected X vs Y Sperm Fitness
SLXL1/SLX/SLY1/SLY2 does not interact with other spindolins. Credit: Proceedings of the National Academy of Sciences (2025). doi:10.1073/pnas.2421446122 Evolutionarily, fitness is defined as the ability of an organism to survive and replicate that gene for the next generation. Genes affect fitness and sometimes compete with each other within organisms. This competition, or weapons competition, is usually difficult to observe when the…
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Other Sciences
The program aims to drink alcohol, unsafe sex and sexual assault on university campuses
Credit: CC0 Public Domain According to a new report in the Journal of Study on Alcohol and Drugs, prevention programs that teach you about links between dangerous drinking and sexual assault, as well as how to protect yourself and your friends, show early promises. It is well known that alcohol and sex can be a dangerous mix for young adults.…
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Other Sciences
Challenge the “monogamy myth”: Unknown people report on the relationships and sex lives they just spent
Credit: Cottonbro Studio by Pexels According to a comprehensive new meta-analysis, monogamous individuals report similar levels of satisfaction in both relationships and sex life. This study, published in the Journal of Sex Research, denies the general belief that monogamous relationships, defined as the romantic and sexual commitment of monogamy, are inherently superior in fostering fulfilling relationships compared to alternative structures.…
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Biology
New AI tools for rapid identification in forensic investigations are faster than humans at estimating biological sex
Volume rendering CT scans visualized with Osirix, featuring five cranial properties used in this study. (a) Left side view showing Gravella (GLA), mastoid (MAS), and Nuchal Crest (NUC). (b) Abnormal viewing with mental uplift (male) and superorbital margin (SUP) shown. Credit: Science Report (2024). doi:10.1038/s41598-024-81718-y CSIRO, a national science institution in Australia, has developed an advanced artificial intelligence (AI) tool…
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