In a bizarre twist of evolution, some fish have been found to be able to control which sperm fertilizes their eggs in order to have the best offspring. According to a study published in the journal ...

Professor Bruce Draper uses zebrafish as a model to study development. Work from his lab in the UC Davis College of Biological Sciences shows how certain genes are linked to sex change in fish and ...

“Zebrafish like to lay their eggs in the early morning as soon as the sun comes out,” said Kent Williams, a graduate student in life sciences from Evansville. “We’re in a controlled environment; the ...

Zebrafish eggs contain a sunscreen called gadusol that protects the growing embryo from harmful rays. The ultraviolet rays in sunlight are damaging. To shield against this, vertebrates produce a ...

As the zebrafish egg cell starts to divide, cytoplasm and yolk granules are segregated. Top row: Bright-field images of the developing zebrafish embryo injected with green micron-sized polystyrene ...

Failure of chromosomal organization within human egg and sperm cells result in miscarriages and infertility. However, the mechanisms controlling these processes are not understood. The discovery of a ...

How a sperm and an egg fuse together has long been a mystery. New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal ...