1876 ⟶ Hertwig and Fol Describe Sperm Entry and Egg Fusion

Oskar Hertwig and Hermann Fol independently described (in se...

Year

1824

1843

1876

🥚 Sperm Discovered to be Agents of Fertilization

J. L. Prevost and J. B. Dumas showed that the sperm in semen were not parasites, as previously thought, but, instead, the agents of fertilization.⟶

BiologyReproductionFertilizationSpermJ. L. PrevostJ. B. Dumas19th Century BiologyEmbryologySexuality

France

🥚 Fusion of Sperm and Egg Observed in Rabbits

Martin Barry reported the fusion of a sperm and an egg for rabbits in a 1-page paper in the Philosophical Transactions of the Royal Society of London.⟶

BiologyReproductionFertilizationMartin BarryEmbryology19th CenturyCell Biology

United Kingdom

🥚 Hertwig and Fol Describe Sperm Entry and Egg Fusion

Oskar Hertwig and Hermann Fol independently described (in sea urchin eggs) the entry of sperm into the egg and the subsequent fusion of the egg and sperm nuclei to form a single new nucleus.⟶

FertilizationCell BiologyReproductionHertwigFolEmbryology19th Century Biology

Germany