Scientists identify key event for sex determination

Scientists at the Institute of Molecular Biology (IMB) in Mainz have identified a protein essential for initiating the development of male sex organs. Loss of the gene Gadd45g results in complete sex reversal of male mice, ...

How do jumping genes cause disease, drive evolution?

Almost half of our DNA sequences are made up of jumping genes—also known as transposons. They jump around the genome in developing sperm and egg cells and are important to evolution. But their mobilization can also cause ...

Birds get the green (and red) light

Japanese quail grow and breed best under green and red lighting. An important bird in the poultry industry, quail thrive better under these conditions than in white and blue light, according to recent research carried out ...

Puma tracking reveals impact of habitat fragmentation

(Phys.org) —In the first published results of more than three years of tracking mountain lions in the Santa Cruz Mountains, UC Santa Cruz researchers document how human development affects the predators' habits.

Exercise affects reproductive ability in horses

In the latest issue of the Journal of Animal Science, researchers at Clemson University and the University of Florida examine the impact of exercise on mare reproductive health and embryo transfer.

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