Reproduction in animals varies from species to species. Some types of reproduction, like parthenogenesis, are more unusual than others. This reproductive method requires only one individual rather ...

One possibility is that this represents a case of "parthenogenesis", a rare form of asexual reproduction exhibited in sharks that lets them give birth without needing to mate.

While asexual reproduction is common among many plants and invertebrates, parthenogenesis, in which an egg develops, is more rare in vertebrates. And scientists are still unsure of exactly why it ...

Aquarists have two potential explanations for what process created this shark. One of the two adult females might have carried out a rare form of asexual reproduction called parthenogenesis, or it ...

One of the two adult females might have carried out a rare form of asexual reproduction called parthenogenesis, or it could be a case of delayed fertilization.

There are two possibilities for how the swell shark may have come to be, aquarium staff said. First, the egg may have been a result of parthenogenesis, a rare form of asexual reproduction.

There are two possibilities for how the swell shark may have come to be, aquarium staff said. First, the egg may have been a result of parthenogenesis, a rare form of asexual reproduction.

This suggests that either parthenogenesis, a rare form of asexual reproduction, or delayed fertilisation, where fertilisation happens long after mating, may have taken place.

One is something called parthenogenesis, which is a rare form of asexual reproduction. And the second is delayed fertilisation, where fertilisation occurs long after possible mating.

This unique situation has led scientists to entertain two potential explanations for Yoko’s conception: parthenogenesis, a ...

The aquarium says Yoko's birth could be the result of either delayed fertilization or parthenogenesis, a rare form of asexual reproduction — in which offspring are identical copies of their ...

The aquarium says Yoko's birth could be the result of either delayed fertilization or parthenogenesis, a rare form of asexual reproduction — in which offspring are identical copies of their ...