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 ...

(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 ...

More than three months after suffering from mild COVID infection, men have lower sperm concentrations and fewer sperm that are able to swim, according to new findings presented at the 39th annual ...

In Vitro Fertilization (IVF) is an effective fertility process; it has turned dreams of parenthood into reality for countless couples. It is a fascinating and complex procedure that goes beyond just ...

Insect glands are responsible for producing a host of secretions that allow bees to sting and ants to lay down trails. New research focuses on secretions from glands in the reproductive tract that ...

The protein RGS2 can delay an egg’s development into an embryo in order to allow time for sperm to arrive and merge with the egg in a healthy fertilization process. The embryo cannot survive without ...