reproduction

What defines sex determination? Sex-changing fish enrich the picture.

by Arianna Lord Earlier this year, the Columbus Zoo and Aquarium performed artificial insemination on two of their female polar bears in hopes that the procedure would produce cubs. Polar bears greatly rely on Arctic sea ice for hunting, traveling,…

Asexual species do not have genetic variability like humans, and most animals, do. Despite that, they can still adapt to environmental changes using modifications to their DNA known as epigenetic changes.

by Jessica Schifffigures by Rebecca Senft Under the waves and in the ocean, climate change is like a persistent third wheel. Akin to that friend who always insists on tagging along on your dates, his/her/their presence makes it difficult for you and…

Researchers in Australia have found the second-ever documented case of semi-identical twins, who share all the DNA from their mother but have different sets of genes from their father. A potential mechanism for such an uncommon occurrence is the…