The only genus in the family Oryziinae, order BELONIFORMES. Oryzias are egg-layers; other fish of the same order are livebearers. Oryzias are used extensively in testing carcinogens.

Proteins obtained from species of fish (FISHES).

Animals and plants which have, as their normal mode of reproduction, both male and female sex organs in the same individual.

The mechanisms by which the SEX of an individual's GONADS are fixed.

Nitroparaffins, also known as nitroalkanes, are organic compounds consisting of a hydrocarbon chain with one or more nitro groups (-NO2) attached to it, typically used as intermediates in the synthesis of other chemicals and having potential applications as fuels or fuel additives.

The developmental entity of a fertilized egg (ZYGOTE) in animal species other than MAMMALS. For chickens, use CHICK EMBRYO.

Propane is a colorless, odorless, and chemically simple hydrocarbon (C3H8), commonly used as a fuel for heating, cooking, and engines, which exists as a gas at room temperature but can be liquefied under pressure and stored in cylinders or tanks.