At what age can you tell between male and female?

[tasha]

I rescued two rats today from an owner surrender. I picked the mother and the largest baby which was twice as big as all the other babies.

I'm wondering when you can tell whether a rat is male or female? I was told that this baby is a female and it certainly doesn't look like a male yet but I want to be sure. She said the babies were somewhere between 1-2 months in age. Like I said this rat is huge by comparison to the others so would size make a difference?

on a different note, the mom has one pink/red eye and one black! Can't wait to show pictures. I've never seen that before!

[DonnaK]

You should be able to tell by now. You should be able to tell from 4 weeks or so.

[Vixie]

Odd-eye rats are adorable. I haven't been lucky enough to come across one personally but I just love how goofy they look in pictures where both eyes show...xD

[Rodere]

I've come across.. Four in my area. One was a sweet boy that we should have kept, another was a not so sweet boy that we kept for a while and then found him a home lol Then we have a blazed capped girl who is discreetly odd-eyed and then one of our pedigreed girls, who is a blazed capped as well.

There are different types of odd-eyed I guess you could say.
Red eye and a black eye
red eye and a ruby eye
or the most difficult to see- ruby eye and black eye

[lilspaz68]

If you know what you are doing you can sex babies from birth. I sexed my oops litter accurately at 3 days of age.

At 4 weeks plus the testicles are developed in the male and very obvious. I would say that you have a female.

my orphan Dilbert at 3 weeks

Dillyman at 3.5 weeks (he was and is a very good handwrestler)

Dillylicious at 4 weeks

[DonnaK]

What a gorgeous rat!! I love the last picture - he looks like he's saying "ok, ok! I know what you want! I'll do it myself, geeze!" :lol:

[fallinstar]

awwwwwwwww

[Night]

Dilly! I love that boy <3