How can you tell if a duck is male or female?

How can you tell from the male and female fire belly toads how do they mate and how do they lay their eggs.

how can you tell if a red eard slider turtle is male or female

How long does a female & a male dog stay tied up when they get together?

My first one has pink feet and my second one has bluish feet, but im not sure about the color of their nostrils. Also the sec...

HOW CAN YOU TELL IF THE BOY DOG IS IN HEAT. I HAVE TWO SHIH TZU

The male is a minature poodle which is half the size of the female. She is in heat and the male can not reach her. What can...

I have a 10 month old female cockapoo (spayed) and would like to get her a playmate. Would a male or female be better?

My 2 yr old Shi Tzu may be pregnant....but my 3 yr old male shi tzu acts as if she is in heat? Is there some kind of hormone...

I've tuck on my friends male cat and he hasnt been neutered and I already have a female cat who has been spayed, but she does...

I have a cat that came to my house and has stayed. It does not act like my other cat, which is female. It doesn't bathe its...