Sex-swapping fish show what it means to be resilient

Transitioning between the sexes allows these five fish species to survive and thrive.


Some 500 species of fish — clownfish like Nemo included — can undergo a shocking transformation during their lives.


These fish have a special skill: hermaphroditism. Their biology allows for them to switch sex as needed, whether that be from male-to-female or from female-to-male — or even somewhere in-between.