UCLA graduate student Jeffrey Riffell and UCLA biology professor Richard Zimmer report the first experimental test on the role of small-scale physics as it influences the interactions between sperm ...

CLEVELAND, Ohio -- The possible loss of frozen eggs and embryos stored at University Hospitals Ahuja Medical Center is potentially devastating for the affected patients. If their eggs and embryos are ...

The finding recasts the role of the egg in the fertilization process. The old notion of the egg as a passive partner for sperm entry is out. Instead, the researchers found, there are molecular players ...

(a) A pollen grain containing the two sperm cells. It produces a pollen tube, which arrives at the ovule. After the arrival, one of the synergid cells degenerates and the pollen tube bursts to ...

If you’ve been trying to conceive for some time but are still getting negative pregnancy tests, then IVF, or in vitro fertilization, may be an option for you. So what is IVF? In short, it’s a ...

The development of every animal in the history of the world began with a simple step: the fusion of a spermatozoon (the male gamete) with an oocyte, or egg (the female gamete). Despite the ubiquity of ...