I have 3 golden danios, 2 zebra danios and 1 leopard danios and 2 of them look pregnant as they have large stomachs and a small black dot at the back of their stomachs
New research by a University of Rhode Island professor suggests that the length of human pregnancy is limited primarily by a mother's metabolism, not the size of the birth canal. The research, published in the Proceedings of the National Academy of Sciences the week of August 27, challenges the...