You might know the basics of fertilization, but what really occurs in the body? For example, where does fertilization occur, exactly? We answer this and more.

That same year, Meyerhof and I found 12 inactivation of the cytostatic factor after injection into the fertilized frog egg at early periods of fertilization as well as after treatment with Ca 2+ ions.

Russian scientist and Harvard Medical School researcher Ksenia Petrova was released on bail after being held in U.S. federal custody for allegedly failing to declare scientific samples she brought ...

Harvard University researcher Kseniia Petrova is facing a pair of additional charges two weeks after a judge released her from ICE detention over her alleged smuggling of frog embryos.

In our next set of studies, we assessed the ability of DNP to induce a torpor-like state in naturally nonhibernating Xenopus laevis tadpoles and the impact of using the nanoemulsion delivery approach.

Harvard scientist accused of smuggling frog embryos faces new charges Kseniia Petrova was indicted on charges of smuggling, concealment and making a false statement after flying to the U.S. with ...

1 State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China 2 University of Chinese Academy of Sciences, Beijing, China During ...

A Russian-born scientist and Harvard University researcher charged with smuggling frog embryos into the United States has been released on bail.

The genetic basis of inbreeding depression and of the related phenomenon, heterosis, has been a puzzle for many decades. Based on recent studies in many species, the authors argue that both ...

BOSTON — A Harvard University researcher accused of smuggling clawed frog embryos into the United States was indicted Wednesday on additional charges.

Kseniia Petrova was detained at Logan International Airport on Feb. 16 for failing to declare frog embryos that she was carrying in her luggage.