How To Sex Baby Panthers

Kent67

Retired Moderator
The topic comes up all the time so I figured it was about time to have a thread that can be linked to. Panthers can be easily sexed fresh out of the egg based on the taper of the tail base. Trying to guess sex based on color can work but is not as reliable. In my experience, some females' tails will become thicker around 2 to maybe 4 months old and this method becomes a little less easy to compare but when they're small it is very accurate.

Baby males are not sexually mature and thus do not have a hemipenal bulge. They do, however, have a space for the hemipenes to develop into. When viewed from the side, with the tail held straight back, the profile from the tail across the vent to the belly is almost a straight line in males. Here are pics of two males:

1 hour old:



1 week old:




The tail base of females has the same shape in babies as adults. It is more thin which makes the profile seem like there's an indention just before the vent.

 

Rocky

Established Member
Very helpful post, I have been practicing on other people's pics and have been able to notice the male portion, but I didn't think about looking for females with that little indention before the vent.
 

Julirs

New Member
THe "Kent-Vent" method works extremely well! :) It often helps, especially on tiny babies, to take a picture of them from the side tail out instead of trying to guage with your eye. It worked on all of my baby Panthers (except for one that turned out to be male instead of female!).
Here are some more pics...
Male




Female...

Look at all the color-this is a female!



 

rcmike

New Member
So going by this, would you agree this one is a female? I think I see what you are saying but I'm still not 100% sure. It is probably like seahorses, once you see it it is very obvious.

 

Jamelon

New Member
female, it looks like my little girl when i got her. It would be a male if the base of the tail was thicker
 

jmdavis

New Member
It just doesn't make sense to me.. I took it back over to Mike's so we could compare it to the one we thought was a female and mine was twice the size already in only about a month so we were sure it was a male. The both came from the same clutch
 

Ace

Avid Member
It just doesn't make sense to me.. I took it back over to Mike's so we could compare it to the one we thought was a female and mine was twice the size already in only about a month so we were sure it was a male. The both came from the same clutch
size doenst help in gender that young....consider when each egg was hatched...some eggs hatch days later from early brothers and sisters from teh same clutch and some just grow faster or slower than others, its natural...you have a nice big healthy and beautiful looking girl:)
 

jmdavis

New Member
Guess I need to start looking for a male instead of a female now.. So bummed right now because the sire had such great colors imo
 
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