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Pit vipers capable of virgin birth: Scientists

For the first time, scientists have discovered that deadly pit vipers are capable of virgin birth, or have the ability to reproduce without sex like their constrictor relatives.

Virgin birth may be sharks` secret survival strategy

Parthenogenesis – a form of asexual reproduction found in females, where growth and development of embryos occurs without fertilization by a male – may be part of an extreme survival strategy for sharks, say researchers.