A new and throughly validated method for timely estimation of the effective reproductive number of SARS-CoV-2 aided in the public health response to the COVID-19 pandemic.

Stochastic models able to reproduce both incidence and seroprevalence data for Zika outbreaks in the Pacific Islands estimate that the basic reproduction number (R₀) is between 1.5 and 4.1.

Experimental manipulations of social groups of ostriches show that the benefits of cooperative parental care for females, and the costs of sexual competition for males, lead to sex differences in optimal group sizes.

A method to assess the risk of self-sustained HIV transmission in heterosexuals from phylogenetic and epidemiological data is developed and, when applied to the Swiss HIV epidemic, shows that this risk is negligibly small for Switzerland.

Selective sweepstakes from pervasive positive selection, rather than demographic changes or random sweepstakes reproduction, is the primary determinant of reproductive skew and genetic diversity in the highly prolific Atlantic cod.

An analysis of publications and research grants shows that the volume of research on reproductive organs is much less than that on non-reproductive organs.

Reproductive fluids help the correct establishment of some epigenetic marks and gene expression in preimplantation pig embryos.

Exceptionally long-lived macromolecules in mammalian ovaries and oocytes serve as pillars for lifelong reproductive health span.

A survey of the transcriptomic landscape of the mouse ovary at the single-cell level reveals both the cellular complexity of this organs and the dynamic nature of the cellular states that accompany estrous cycling.

Secretory cells in the fruit fly reproductive tract produce secretions that control ovulation through a conserved mechanism that could provide insights into ovarian cancer.