how could i know the sex of goldfish?
537316
check for tits?.. or... u know.. =D
131653
Toads do not have external genitalia, so unless you are planning to dissect it or analyze its tissues, you may:\n\n- observe any external dimorphic characteristics: \n..males of many species are larger (however, in many other species the females are larger), may have some coloration differences, or other special structures (not common);\n..they may have pectoral patches or rugose areas on their hands, especially during the breeding period; \n..they may have bigger tympanic membranes than the females;\n\n- test their behavioral response:\n.. if you grab a male toad by its dorsum, using your thumb and index finger to squeeze its sides (gently!), it will probably start vibrating and maybe making soft vocalizations. This is the way that males have of telling other males "Hey, I'm not a girl" to avoid being grabbed during amplexus (the reproductive 'embrace'). However, in some cases, females that have no more eggs to liberate may also emit this disruptive vibration. \n\nOf course, once you dissect it it becomes easier. But I don't like the idea. As Gandalf once said "He that breaks a thing to find out what it is has left the path of wisdom".
25149
seeing a crab of the opposite sex?
886464
excuse the answer above-&#92;\nyou are obviously a male that needs more info-\nwhat exactly would you like to know?
420850
A hermaphrodite will have both male and female parts, so you would need a medical exam, maybe xrays.  A pre-operative transsexual will have male genitals, but a post-operative might look like a woman--x-rays would probably be needed.
100779
go to www.dec.state.ny.us/website/dfwmr/fish
776596
1. If you don't care about color, then you just choose 5 from 13.\n\n13C5\n\n2.  For this one you just choose 2 gold fish from the 5 and 3 black fish from the 8.\n\n5C2 * 8C3
23543
In zoology, a hermaphrodite is an organism of a species whose members possess both male and female sexual organs during their lives. In many species, hermaphroditism is a normal part of the life-cycle. Generally, hermaphroditism occurs in the invertebrates, although it occurs in a fair number of fish, and to a lesser degree in other vertebrates.\n\nSee below for use of the term in plants.\n\nNote: The term "hermaphrodite" has historically been used to describe people with ambiguous genitalia or biological sex. The broader term intersexual is often used and is preferred by many such individuals and medical professionals. The term is still used by the pornography industry, though often as a synonym for transexual, as true human intersexuals are rare.\n\n\nIn animals\nSequential hermaphrodite: The organism is born as one sex and later changes into the other sex. \nProtandry: When the organism starts as a male, and changes sex to a female later in life. \nExample: The seabasses (Family Serranidae). These are a highly sought food fish complex made up of primarily groupers. Since even a small male can produce more than enough sperm to fertilize a huge number of eggs, while a female's egg output increases greatly with an increase in size, this strategy makes sense for an organism (fish in general) where over 90% of the eggs laid will not result in a fish that reaches sexual maturity. It has been shown that fishing pressure actually is causing a change in when the switch from male to female occurs, since fishermen naturally prefer to catch the larger fish. The populations are generally changing sex at a smaller size, due to artificial selection.
613056
The urogenital openning in most fish would be a little larger relative to a male of the same size.\n\nAlso female halibut grow up to 8 feet or more in length, males top out at arounf 4-4 1/2 feet.
128612
I don't know exactly how, but yes they can determine gender in a urine test.  But they can not determine age.\n\nGood luck!
820510
A pregnant gold fish.
418049
Well at least your not lubing the small animals and shoving them up your @ss! Seriously, the only thing I'm concerned about is the cleanliness of the animals. Maybe you should start breeding them in a safe and clean environment. Good luck! By the way, stay away from my goldfish!
889862
I've heard that some people think they can tell the sex of a deer by looking at its tracks but I have never seen anyone who can do it with enough regularity for it to have any meaning.  The most often heard method is to look for wider tracks and the presence of dew claws.  Supposedly, the buck has a wider track with dew claw prints while the doe had a narrower track without dew claws.  This doesn't hold up in actual practice because the wider track only means that the deer was a bit larger than another deer with a more narrow track.  It has nothing to do with the sex of the deer.  A big doe with a yearling fawn will leave a wider track than the yearling fawn even if it is a male.  Now, I have to admit, if you see an exceptionally wide track with the presence of dew claws, it most likely is a buck simply because bucks tend to be larger than does.  A big deer leaves a wider track than a smaller deer regardless of its sex.  I've also heard that there is some difference between doe droppings and buck droppings but I have never seen anyone who could actually tell the difference.  Deer droppings all look the same to me and I have seen a lot of deer droppings.  Turkey droppings are another thing.  There is a definite difference between gobbler droppings and hen droppings but you didn't ask about turkey droppings.
173177
I have never heard of anything that can change gender (or sex) unless through operation as for human beings. And moreover a frog is from a tadpole hatched from an egg.
938311
here\n\nhttp://search.singingfish.com/sfw/home.jsp
717215
What species of male?\n\nLimp or aroused?\n\nGotta be a little more specific here!
560228
How would I know ????\n\nI am not a GIRL !!!!