How can you tell the difference between a female Brown Bullhead Catfish and a male?

You can find it easily by checking the fins of and tails of catfish. Female catfish have large tale and fins so you can check it by comparing two. The second thing is that you should check is to find...

I own brown anoles and I've done quite a lot of research work on them. You can see it at www.theanimalchannel.zoomshare.com. Just click on "Project Anole".So anyways, both the male and female brown...

Human Beings The difference is that the boy has a penis and an Adams Apple. Girls have no Adams apple and when going through puberty girls get a period for which they have to use tampons or pads.

A female has larger breasts and no penis. A male has a penis and smaller breasts.

That depends entirely on the species.