⚡️Francia, al borde del caos: dos semanas de disturbios estudiantiles, coches en llamas, comercios destrozados y enfrentamientos con la Policía. Más de 1.000 colegios cerrados y cerca de 5.000 detenidos. Las autoridades quieren negociar, pero los manifestantes ya exigen más.

Extraordinary artworks.

Fertilization is not random, and the fastest sperm does not always win: in reality, the egg decides who succeeds. While for decades we were taught that fertilization is a race won by the fastest sperm, a study published in Proceedings of the Royal Society B shows how human reproduction actually works. Scientists analyzed follicular fluid from 60 couples undergoing fertility treatment at St Mary's Hospital in Manchester, UK. They discovered that the egg releases chemical signals (chemoattractants) that actively attract sperm from certain men over others. Through these chemical signals, the egg exerts its own biological selection, influencing which sperm manage to get close. The egg appears to favor sperm that offer optimal genetic compatibility with its own genome — particularly in genes related to the immune system — which may help produce healthier offspring. Interestingly, this cellular preference does not always align with the couple’s conscious partner choice. In many cases, eggs showed stronger attraction to sperm from non-partner males. This chemical communication demonstrates that female biology continues to evaluate and select options even after intercourse. Understanding this process could lead to more precise solutions for unexplained infertility. Science continues to reveal the remarkable level of biological interaction that occurs during reproduction. [Fitzpatrick, J. L. et al. (2020). Chemical signals from eggs facilitate cryptic female choice in humans. Proceedings of the Royal Society B, 287(1928), 20200805. DOI: 10.1098/rspb.2020.0805]

That is unconditional love 💕

👌😂😂

😂😂😂😂🤣🤣🤣🤣

폴란드 포드웝비체의 코시치우슈코 광장에 설치된 프리마 발레리나 분수… 정말 아름답네요~~

Juste après l’éclipse, ne partez pas vous coucher : c’est le pic d’étoiles filantes ! Jusqu’à 100 par heure selon les zones !

This is one of the greatest creative arts of all time.

Watch these epic Volleyball moments!

Si no me vas a despedir así, mejor no me despidas nada bb.