swordtail

One problem has already been addressed: the swordtail's taste for its own young.

The hybrid offspring are then crossed again with a swordtail.

And that of the northern swordtail, a small freshwater fish, is especially perplexing, researchers have found.

The type species is X. hellerii, the Green swordtail.

Tail extensions similar to that seen in a swordtail are not uncommon, but are much shorter.

The same principle causes a female fish of the swordtail species to prefer males with "swords" extending from their bodies.

Each of these rivers is a hybrid zone between two species of the swordtail fish Xiphophorus.

Dr. Schreibman stressed the similarity of the swordtail's reproductive system to that in humans.

It is, therefore, in the same genus as the Common Platyfish and the Swordtail.

The yellow swordtail (Xiphophorus clemenciae) is a species of fish in the Poeciliidae family.

One species was the green swordtail; the male's body is about three inches long and has a three-inch sword-like extension from its rear fin.

During courtship, a male swordtail swims alongside a female and raises a large sail-like fin on its back.

The Spot Swordtail gets its name from the beautiful line of distinct white spots along the margin of its wings.

Swordtail may refer to:

The male swordtail fish has a long sword-like appendage extending from its rear fin that seems to serve no purpose other than to attract mates.

Each sword measured about an inch, to match the platyfish's smaller body, and was colored black and bright yellow, similar to the male swordtail's.

The name "swordtail" is derived from the elongated lower lobe of the male's caudal fin (tailfin).

The green swordtail prefers swift-flowing, heavily-vegetated rivers and streams, but is also found in warm springs and canals.

A live-bearer, it is closely related to the green swordtail (X. helleri) and can interbreed with it.

The two species are members of the same genus, but the platyfish is considered more primitive, a kind of living progenitor of the green swordtail.

Graphium latreillianus, the Coppery Swordtail, is a butterfly in the Papilionidae family.

Xiphophorus monticolus (Southern mountain swordtail)

It has a related species, Sixbar Swordtail Pazala eurous, which is also found in India.

Xiphophorus clemenciae (Yellow swordtail)

Xiphophorus cortezi (Delicate swordtail)