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 ...

Freshwater planarians, found around the world and commonly known as "flatworms," are famous for their regenerative prowess. Through a process called "fission," planarians can reproduce asexually by ...

Some animals can produce offspring from an unfertilized egg in an asexual reproduction process known as parthogenesis. When this is the standard process for a species it's said to be 'obligate' and ...

Parthenogenesis is a natural form of asexual reproduction in which growth and development of embryos occurs without fertilization by sperm. The San Diego Zoo Wildlife Alliance on Thursday announced ...

Life cycles require the creation of an autonomous individual, that individual’s growth and that individual’s reproduction In ...

Are males truly essential for reproduction? Female birds, reptiles and sharks living in captivity have sometimes surprised their keepers by giving birth even though, as far as anyone can remember, ...

BROOKFIELD, Ill. (Gray News) – A shark at the Brookfield Zoo in Illinois was born through asexual reproduction, something so rare that experts believe it’s only the second time it has ever happened at ...

Question: What is it about plants that makes it possible for you to grow them from a cutting rather than having to always start them from seed? I’m planning to expand my garden this season and want to ...

Sexual reproduction implies high costs, but it is difficult to give evidence for evolutionary advantages that would explain the predominance of meiotic sex in eukaryotes. A combinational theory ...