Reproduction of native and invasive bitterling fishes and their hybridisation was studied in Japan. We collected mussels in which these bitterlings lay their eggs, kept them in aquaria, collected eggs ...

Not quite two years ago physicians and prospective parents welcomed the news that a small, carp-like fish could tell whether or not a woman was going to have a baby (TIME, Jan. 7, 1935). Called ...

* Description: A small freshwater fish in the carp family, native to Taiwan, the rosy bitterling grows to some 6.5cm long. It's a pretty thing, with a flat silver body touched with green behind the ...

The minute a woman becomes pregnant certain hormones appear in her urine. If she wants to make sure of her pregnancy and can afford the expense, she may send a vial of her urine to her obstetrician.

This is a preview. Log in through your library . Abstract Sexual selection may operate through either direct selection on preference genes or indirect genetic benefits. However, in many species both ...

* Description: The bitterling is a small fish, growing to around 70 mm in length. Adults are fairly deep-bodied, with a similar body shape to goldfish. In the breeding season, males become much more ...

This is a preview. Log in through your library . Abstract Choice of a site for oviposition can have fitness consequences. We investigated the consequences of female oviposition decisions for offspring ...