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A male rat has testicles and a female does not! Take a peek under the tail! They are rather noticeable!
If the male is neutered it may be more difficult. In that case compare the rat to another rat you are sure of the gender of. Male rats are a lot larger than females. Also you may be able to feel nipples on a female rat's stomach.
What else can I help you with?
How do you tell the difference between male and female paw parrot?
No difference
How do you tell the difference between a male and female caterpilar?
you do it
How do you tell the difference between a female and a male ladybird?
The males are smaller than the female
How can I tell the difference between male and female kittens?
You can tell the difference between male and female kittens by looking at their genitalia. Male kittens have a small distance between their anus and genital opening, while female kittens have a larger distance between these two openings.
How can you tell the difference between a male or a female?
That depends entirely on the species.
How do you tell the difference between a female and male reindeer?
Males have a penis and scrotum and female dont.
How can you tell the difference between male and female"?
The difference between male and female can be determined by physical characteristics such as reproductive organs, secondary sexual characteristics, and genetic makeup.
How can you tell the difference between a male and female fish?
bass clef its obvious
How do you tell the difference between a male and female meat duck?
Females quack
How can you tell the difference between male and female panda hamsters?
Check their genitals.
How do you tell the difference between a male and female juvinile peacock?
i don't now
How can you tell the difference between male and female poppy?
By the stamen inside the flower
