Home > Animals > Interesting Facts > ABC. It’s easy as Protandry


ABC. It’s easy as Protandry


By: staff   Date: 04/5/2018


The largest, most aggressive female anemonefish rules the roost - she is the dominant member of the social group, and with one breeding male, the only one who reproduces. In anemonefish society, everybody knows where they stand in the hierarchy! So when she leaves the group, everybody moves up one spot - including the largest, most aggressive male, who undergoes a sex change to become the leader (and breeding female) of the group. While undergoing a sex change might sound drastic to humans, it is actually not all that uncommon in other species. Many do it, either naturally or due to environmental factors: fish, invertebrates, amphibians, some reptiles, even the occasional chicken!


Related Fish

(Pygocentrus nattereri)

(Eptatretus stoutii)

(Tanichthys albonubes)

(Urobatis halleri)

Other Fish Facts
Hey, Fishlips!

If you’ve ever worn lipstick (or kissed anybody wearing lipstick), you’ve probably had fish scales on your lips. Of…
Learn more >>

The fish that could drown (and other amazing tales)

Fish are masters of aquatic living, though some manage to do pretty well on land, too! Of living species, the mudskipper…
Learn more >>

The Oldest Fish in the Sea?

The Greenland Sleeper Shark, the only living species of sub-Arctic shark, is an apex predator only slightly smaller than…
Learn more >>

Undersea Conversations…

While it isn’t obvious, fish have ears, and are able to communicate to one another through sounds. They don’t have…
Learn more >>

Interesting Animal Facts

There may be times when you are so tired you feel as if you could sleep for several days - but of course that is not possible…


Fish are masters of aquatic living, though some manage to do pretty well on land, too! Of living species, the mudskipper…


Invertebrates were the first animals to evolve. While their soft bodies left precious few records behind, there are fossils…


If you’ve ever worn lipstick (or kissed anybody wearing lipstick), you’ve probably had fish scales on your lips. Of…


Calling someone a “bird brain” is an insult, but perhaps it should be reconsidered given how many birds display high…


Bats, the only mammal capable of true flight, are not blind - their eyes are just fine, thank you very much. But instead…


NAIA - National Animal Interest Alliance Discover Animals is a web-based educational resource offered by the NAIA
To learn more about the NAIA or about other NAIA programs, visit us at www.NAIAOnline.org
if you would like to help, join or support the NAIA or any of its programs please click here >>