While a sex change may entail complicated reconstructive surgery in humans, it takes species like clownfish little effort. Erem Kazancioglu, a Ph.D. student, and his advisor Susan Alonzo, an assistant ...

Most animals, like humans, have separate sexes -- they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then ...

Hoeven’s wrasse (Halichoeres melanurus) is one of many species of reef fish that begin adult life as females and later switch to being functionally male. UC Davis researchers have shown that ...

🛍️ The best Cyber Monday deals you can shop right now (updating) 🛍️ By Sara Chodosh Published Jul 11, 2019 12:23 AM EDT Get the Popular Science daily ...

On October 3 the new series of Doctor Who will hit TV screens, and for the first time the time-travelling Doctor will be played by a woman: British actress Jodie Whittaker. Her casting created an ...

Scientists love to group things. We also like to name things. We also like to plot data on bivariate graphs. On really crazy nights, we let our hair down, well not me per se but other scientists with ...

Hawkfish: Hawkfish are protogynous hermaphrodites, beginning life as females and transitioning to males. Northern Cardinal: Northern cardinals have characteristics of both male and female traits ...

A new study by the Institut de Ciències del Mar (ICM-CSIC) in Barcelona has revealed that gonochorism, or separate sexes, and not hermaphroditism, as proposed by recent phylogenetic work, is the ...

New Haven, Conn. —Most animals, like humans, have separate sexes — they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their ...

Some species of fish, notably parrotfish and wrasses living on coral reefs, change their biological sex as they age, beginning life as females and later becoming functionally male. New work shows that ...

Most animals, like humans, have separate sexes — they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then ...