Monday, 30 October 2017

Transgender fish filmed changing sex for BBC’s Blue Planet II

Sarah Knapton, science editor 
23 OCTOBER 2017 • 12:01AM

Mating is never easy when you have an unsightly bulbous appendage protruding from your head.

But the male Asian Sheepshead Wrasse has even greater problems to contend with.

The female wrasse is endowed with the extraordinary ability to unexpectedly switch gender, a change which not only scuppers any burgeoning relationship with the male but also creates another headache for him - a new love rival.

The gender-bending ability of the wrasse has been captured in detail for the first time for BBC Blue Planet II which airs on Sunday.

Scientists believe the female wrasse makes the switch because she can pass on more genes as a male, although it is unclear why some change while others remain female.



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