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Biotech

Submission + - Female Sharks Can Reproduce Alone

mikesd81 writes: "The Washington Post has an article about a team of American and Irish researchers that have discovered that some female sharks can reproduce without having sex, the first time that scientists have found the unusual capacity in such an ancient vertebrate species.

Their report concludes that sharks can reproduce asexually through the process known as parthenogenesis(the growth and development of an embryo or seed without fertilization by a male). Scientists started investigating after a female hammerhead shark was mysteriously born at Omaha's Henry Doorly Zoo in a tank that housed 3 female sharks. It was originally thought one had stored sperm from a male shark before fertilizing an egg. However, baby shark's genetic makeup perfectly matched one of the females in the tank, with no sign of a male parent."
Space

Submission + - Scientists discover radiation-eating fungi

amigoro writes: "Scientists have discovered that fungi are able to eat radiation, and since ionizing radiation is prevalent in outer space, astronauts might be able to rely on fungi as an inexhaustible food source on long missions or for colonizing other planets. Just as the pigment chlorophyll converts sunlight into chemical energy that allows green plants to live and grow, our research suggests that melanin can use a different portion of the electromagnetic spectrum — ionizing radiation — to benefit the fungi containing it, the researchers explain."

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