Goldfish – a species of freshwater ray-finned fish of the genus crucians. The name of the group is due to the name of one of the progenitors of all breeds of "goldfish": the first, cultivated from ordinary silver carp.

Sexy Species Died Off Quicker. That Has Conservationists Worried. A new study suggests that dramatic physical features might look cool, but less-sexy species survive.

The Sexy Shrimp Is A (Sexy) Species Complex – A sexy scientific adventure into the world of teeny tiny shrimps.

Most commonly known as Professor Xavier’s outer space teenfriend, Lilandra is the Empress of the Shi’ar Empire, an advanced alien species of bird people. She has funky feathers for hair, hollow bones, and lays eggs, but she sure knows how to wear a metal bodysuit.

—Stephen to Sil when Sil pounces on him, naked and they have sex. Dr. Stephen Arden was a sexual partner of Sil and the biological man of her son. Sil doesn’t really have a relationship with him. Sil only needs human sperm to produce offspring. After being impregnated by Stephen, she killed him shortly.

For many species, sex is not determined by inherited traits, but instead by environmental factors experienced during development or later in life. Many reptiles have temperature-dependent sex determination : the temperature embryos experience during …

Inter-species sexual behavior has also been observed in sea lions. Male grasshoppers of the species Tetrix ceperoi often mount other species of either sex and even flies, but are normally repelled by …

Sex-mad monkeys have been sexually experimenting with other species, creating an entirely new hybrid population of apes — and scientists are absolutely fine with it.

A male snow monkey sexually mounting a female sika deer. Alexandre Bonefoy . But considering that sex is driven by the need to keep the species going, interspecies mating is confusing.

Movies: Species fanfiction archive with over 24 stories. Come in to read, write, review, and interact with other fans.