Author Topic: Some things I definitely didn't know about birds  (Read 160 times)

Jubal

  • Megadux
    Executive Officer
  • Posts: 22460
  • Karma: 102
  • Awards Awarded for oustanding services to Exilian!
    • View Profile
    • Awards
Some things I definitely didn't know about birds
« on: June 21, 2017, 06:32:30 PM »

Article link:
How does a duck change its sex?

Basically, female birds with ovarian problems can literally naturally change sex, because they stop producing oestrogen, and this can actually lead to a bird with full male secondary characteristics and the capacity to father offspring. I hadn't even really realised just how different the sex hormones are in other vertebrate species, I'd assumed that X/Y was actually common among vertebrates, and I certainly didn't know that the primary inhibitor hormone is oestrogen in birds whereas it's testosterone in humans. It's rare that an avian natural FtM sex change happens succesfully, primarily because the change is started by some sort of major ovarian problem, but it's fascinating that they can do it at all in the first place.

The duke, the wanderer, the philosopher, the mariner, the warrior, the strategist, the storyteller, the wizard, the wayfarer...

Clockwork

  • Charming Prince of Darkness
  • Citizens
    Voting Member
  • Posts: 1914
  • Karma: 16
  • Bitter? Me? portugal no, I think it's hilarious.
    • View Profile
    • Awards
Re: Some things I definitely didn't know about birds
« Reply #1 on: June 22, 2017, 04:22:22 PM »
Weird. +1, nice info.
Once you realize what a joke everything is, being the Comedian is the only thing that makes sense.


Pentagathus

  • King of the Wibulnibs
  • Posts: 2402
  • Karma: 17
    • View Profile
    • Awards
Re: Some things I definitely didn't know about birds
« Reply #2 on: June 23, 2017, 02:16:02 PM »
Hot.

Jubal

  • Megadux
    Executive Officer
  • Posts: 22460
  • Karma: 102
  • Awards Awarded for oustanding services to Exilian!
    • View Profile
    • Awards
Re: Some things I definitely didn't know about birds
« Reply #3 on: June 23, 2017, 03:05:47 PM »
Also Mandarin ducks just generally look pretty cool.
The duke, the wanderer, the philosopher, the mariner, the warrior, the strategist, the storyteller, the wizard, the wayfarer...