Exotic Rescue Forum

Run By Reptile Rescuers - For Reptile Lovers!
 
HomeHome  Portal*  CalendarCalendar  FAQFAQ  SearchSearch  RegisterRegister  MemberlistMemberlist  UsergroupsUsergroups  Log in  Reptile Rescue DenReptile Rescue Den  

Share | 
 

 Sexing Crocodilians

Go down 
AuthorMessage
caimanhunter
Moderator
Moderator
avatar

Number of posts : 1036
Age : 59
Location : Austin, TX, USofA
Registration date : 2008-01-02

PostSubject: Sexing Crocodilians   Sun Mar 02, 2008 4:37 pm

The correct identification of the sex of your crocodilian will only be necessary if you wish to breed them. With all the rescues and animals needing to be rescued and the low price for spectacled caiman, there really is no reason or need for the average owner to breed caiman. But knowing how to find the sex of your animal is a handy tool.

An experienced herper will have a better idea of what to look for when determining the sex, however, with the help of the information and photographs below, this should give you a good idea on how to do this yourself.

A word of caution: The safest way is the pinky probe, which cannot be done until the animal is about 3 feet long.

Visual Identification
The first method is to visually see the male sex organ. This can be done by holding the animal up while it is angry. Either you've invaded its space or it was feeding or mating or you were doing maintenance and taking too much time. But if it's angry and you are able to handle it by picking it up, you will be able to tell if it is a male, easily.



Other than lifting an angry croc up by its neck while it's trying to breed or eat, an easier way would be by visual inspection. When your animal is out of the water and secured there are other ways to determine the sex.

Popping
The next method of sex determination is called "popping". You use pressure on the tail to "pop" out the male's penis (if it's a male). I highly advise against this method. One mistake and you have irreparably harmed your animal. Also, it can only be used on young caiman, like hatchlings or yearlings. However, for educational purposes and to be able to understand what a trained herper is doing, I will explain "popping".

You bend the tail towards the animal's belly so that you compress the cloaca. Next, using your thumb and index finger spread the cloaca apart from the sides and then apply pressure to both sides so that the cloaca starts to spread outwards and the tip of male's penis should literally pop out. If you don't see a penis then it's probably a female.



Tweezer Method
Next, if you absolutely, positively, without a doubt, need to know the sex of your hatchling there is the tweezer method. Again, one wrong move and the animal will have no sex. So wait if you can. For educational purposes, the tweezer method will also be explained.

Take a pair of tweezers, KY the tip, slide the tweezers into the hatchlings cloaca about one half (1/2) inch and open the tweezers, to open the cloaca.

Shine a very powerful flashlight into the cloaca and see if you see a penis. If not, it's probably a female.



Pinky Probe
This action involves inserting your pinky into the caiman's cloaca and reaching forward, toward the animal's belly and feeling for the penis. The male has a single penis, unlike other reptiles, that starts at the edge of the cloaca and curls from the belly toward the opening, so that the head lies directly beneath the opening. So, if you feel a fleshy tube as you stick your finger in its cloaca, and reach forward toward the belly, you've got a male.









Disclaimer: Your results may vary. Don't try this at home. Attempts at sexing animals by anyone other than an experienced herpatologist may be harmful to the animal. This page for educational purposes only.
Back to top Go down
View user profile http://www.caimanhunter.com
Reptile Rescue Den
Admin
Admin
avatar

Number of posts : 2711
Age : 48
Location : Bolton, Lancs. UK
Registration date : 2007-12-24

PostSubject: Re: Sexing Crocodilians   Sun Mar 02, 2008 10:17 pm

Good post Bam.

How come they expose all when angry? scratch

_________________
"We are not rescuers for medals and glory, we are rescuers to help the animals that are true to our hearts".



Read our Rehoming Policy.
Back to top Go down
View user profile http://www.reptilerescueden.co.uk
caimanhunter
Moderator
Moderator
avatar

Number of posts : 1036
Age : 59
Location : Austin, TX, USofA
Registration date : 2008-01-02

PostSubject: Re: Sexing Crocodilians   Mon Mar 03, 2008 1:10 pm

Must be a testosterone thing.

No, I'm kidding. I really don't know why.

It is true, though. I have found through my experience dealing with them over the years that they like to shoot me the real bird whenever I mess with them and they're more not in the mood to be messed with than their usual not in the mood to be messed with! (As you can tell by the pictures above).
Back to top Go down
View user profile http://www.caimanhunter.com
Reptile Rescue Den
Admin
Admin
avatar

Number of posts : 2711
Age : 48
Location : Bolton, Lancs. UK
Registration date : 2007-12-24

PostSubject: Re: Sexing Crocodilians   Mon Mar 03, 2008 1:42 pm

So I'm wondering now... is it only crocodilians that do this? I've not heard of it before in other reptiles. But that don't mean to say it doesn't happen. scratch

_________________
"We are not rescuers for medals and glory, we are rescuers to help the animals that are true to our hearts".



Read our Rehoming Policy.
Back to top Go down
View user profile http://www.reptilerescueden.co.uk
Reptiles In General
Egg
Egg


Number of posts : 26
Registration date : 2008-03-03

PostSubject: Re: Sexing Crocodilians   Mon Mar 03, 2008 9:05 pm

Great mate that's certaintly new info Very Happy Cool Cool
Back to top Go down
View user profile
Bogga
Yearling
Yearling


Number of posts : 290
Location : Cape Town South Africa
Registration date : 2008-01-03

PostSubject: Re: Sexing Crocodilians   Thu Mar 06, 2008 5:37 pm

Shocked Your Pinky! Thanks Bam!
Back to top Go down
View user profile
caimanhunter
Moderator
Moderator
avatar

Number of posts : 1036
Age : 59
Location : Austin, TX, USofA
Registration date : 2008-01-02

PostSubject: Re: Sexing Crocodilians   Thu Mar 06, 2008 6:31 pm

Reptile Rescue Den wrote:
So I'm wondering now... is it only crocodilians that do this? I've not heard of it before in other reptiles. But that don't mean to say it doesn't happen. scratch

Is there any chance it has to do with crocs being the only reptile with a single penis compaired to other reptiles that have hemi-penises?

I dunno. I'm asking.
Back to top Go down
View user profile http://www.caimanhunter.com
Reptile Rescue Den
Admin
Admin
avatar

Number of posts : 2711
Age : 48
Location : Bolton, Lancs. UK
Registration date : 2007-12-24

PostSubject: Re: Sexing Crocodilians   Thu Mar 06, 2008 6:47 pm

Probably the reason right there scratch

_________________
"We are not rescuers for medals and glory, we are rescuers to help the animals that are true to our hearts".



Read our Rehoming Policy.
Back to top Go down
View user profile http://www.reptilerescueden.co.uk
caimanhunter
Moderator
Moderator
avatar

Number of posts : 1036
Age : 59
Location : Austin, TX, USofA
Registration date : 2008-01-02

PostSubject: Re: Sexing Crocodilians   Thu Mar 06, 2008 7:16 pm

Back to top Go down
View user profile http://www.caimanhunter.com
Martin S
Egg
Egg


Number of posts : 45
Age : 39
Location : In a hole
Registration date : 2008-07-11

PostSubject: Re: Sexing Crocodilians   Thu Jul 17, 2008 10:07 pm

When sexing Niles we also use the pinky method.
When the croc is large, it becomes the hand method. And crocs really don't enjoy the process
Back to top Go down
View user profile http://www.madmartin.co.za
caimanhunter
Moderator
Moderator
avatar

Number of posts : 1036
Age : 59
Location : Austin, TX, USofA
Registration date : 2008-01-02

PostSubject: Re: Sexing Crocodilians   Fri Jul 18, 2008 12:01 am

If they don't wink at you afterwards you're doing it wrong.

Back to top Go down
View user profile http://www.caimanhunter.com
Bogga
Yearling
Yearling


Number of posts : 290
Location : Cape Town South Africa
Registration date : 2008-01-03

PostSubject: Re: Sexing Crocodilians   Fri Jul 18, 2008 9:06 am

Ja, if Im a 4 metre half a ton hunk of teeth, armour like skin and can rip almost anything to shreds, NOBODY shove anything up down below and get away with it!
Back to top Go down
View user profile
Sponsored content




PostSubject: Re: Sexing Crocodilians   

Back to top Go down
 
Sexing Crocodilians
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Exotic Rescue Forum :: General Help & Chat :: Crocodilian-
Jump to: