Do fish have balls?

Testes. Most male fish have two testes of similar size. In the case of sharks, the testes on the right side is usually larger. The primitive jawless fish have only a single testis, located in the midline of the body, although even this forms from the fusion of paired structures in the embryo.

Do female fish have testes?

The Reproduction of Fish

All fish have internal sexual organs, and some have evolved external organs as well. Female fish have ovaries that produce eggs while male fish have testes that produce sperm.

Do fish has sperm?

Males produce sperm, usually as a milky white substance called milt, in two (sometimes one) testes within the body cavity. In bony fishes a sperm duct leads from each testis to a urogenital opening behind the vent or anus. In sharks and rays and in cyclostomes the duct leads to a cloaca.

Are fish asexual?

About 50 vertebrates are known to use asexual reproduction including fish, amphibians and reptiles.

Do fish eggs have sperm?

fish eggs pictures.

In most cases, the females release eggs into the water and they are immediately fertilized by sperm from the male.

Do fish have balls?

How do fish pee?

A lot of fish get rid of the pee through an tiny opening, called a pore, that's near their rear ends—and in some fish, waste also goes out through the skin or the gills. When a fish pees in a coral reef, the corals wave their tentacles around like tiny arms to grab nutrients from the pee and absorb them.

How do fish get pregnant?

In most cases, the female drops eggs in the water which are immediately fertilized by sperm from the male. Another way is for fertilization to occur within the females body before she drops them into the water. With the third and final method, the female retains the eggs within her body and the young are born alive.

Do fishes sleep?

While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.

How do fish release sperm?

Most species have separate female and male sexes, but there are also many species that are hermaphrodites, meaning that an individual has both testes and ovaries. Fertilization is external in most fish species. Large quantities of eggs and sperm are simultaneously released into the water by females and males.

Can female fish get pregnant without a male?

Although it's not possible for a female guppy to get pregnant without a male, it can appear that she did. Research has shown that a female guppy can hold a male guppy's sperm for 10 months or possibly longer. This may give the appearance that a female guppy is pregnant without being in the presence of a male.

What does fish sperm look like?

Depending on the level of seminal fluid contained in the sac, the color ranges from translucent and whitish with a pink hue to opaque and white as snow, hence shirako being represented by kanji characters meaning "white children."

What is fish sperm called?

Milt is the seminal fluid of fish, mollusks, and certain other water-dwelling animals which reproduce by spraying this fluid, which contains the sperm, onto roe (fish eggs).

Do fishes mate?

Most fish spawn by releasing eggs and sperm directly into the water column to achieve fertilization. This can be done on a one-on-one basis or in a group. Many salmonid species take the more intimate and monogamous approach. One of the benefits of this strategy is that only one male's sperm fertilizes a batch of eggs.

Do goats clitoris?

majora is homologous to the scrotum in males, and it is the visible external portion of the female tract. The clitoris is located in the lower portion of the vulva.

How does a shark reproduce?

The male will insert his clasper into the female's cloaca, releasing sperm and fertilizing her eggs. This usually happens whilst the sharks are swimming parallel to one another, the male will hold on to the female with his teeth, often inflicting bite marks along the female's body.

Do fish ever fart?

topics the answer depends on the definition of farting. If you consider farting to be the by-product of digestion – in other words gases expelled from the rear end – then most fish don't fart. However there are two exceptions, the shark and the herring.

Do fish feel pleasure?

Experts believe that fish are not only capable of feeling pain, but also pleasure – oxytocin, a “feel-good” hormone, has been discovered in fish.

How do you know if a fish is a boy or girl?

You can determine the sex of your fish by inspecting its gonads (reproductive organs), which are located towards the top of the gut cavity. Mature female fish will have orange ovaries and male fish will have white testes (see photos above).

Do fish get thirsty?

The answer is still no; as they live in water they probably don't take it in as a conscious response to seek out and drink water. Thirst is usually defined as a need or desire to drink water. It is unlikely that fish are responding to such a driving force.

Can a fish drown?

Most fish breathe when water moves across their gills. But if the gills are damaged or water cannot move across them, the fish can suffocate. They don't technically drown, because they don't inhale the water, but they do die from a lack of oxygen.

Do fishes poop?

So, how do fish expel their feces? Well most of them will expel their feces through an anal vent (also called a cloaca), which is simply an opening for all wastes to leave the body. This includes not only feces but also urine, reproduction, and sometimes eggs or sperm if needed.

What fish gives birth through its mouth?

mouthbreeder, any fish that breeds its young in the mouth. Examples include certain catfishes, cichlids, and cardinal fishes. The male of the sea catfish Galeichthys felis places up to 50 fertilized eggs in its mouth and retains them until they are hatched and the young are two or more weeks old.

Do male fish get pregnant?

In the entire animal kingdom, male seahorses (and their close relatives) are the only male animals that undergo pregnancy and give birth to offspring.

How are fish born?

Fish reproduce by bearing live young or by laying eggs. Livebearers give birth to fully formed and functional young called fry. The eggs are fertilized and hatch within the female.

Do fishes cry?

"Since fishes lack the parts of the brain that set us apart from the fishes — the cerebral cortex — I doubt very much that fishes engage in anything like crying," Webster told LiveScience. "And certainly they produce no tears, since their eyes are constantly bathed in a watery medium."