Snakes Use 'Leg Genes' to Make Phalluses

Snakes maintain most of the DNA sequences that mammals use to make legs — even though snakes lack limbs. Turns out the genes are responsible for phallus development in snake embryos.

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In Photos: How Snake Embryos Grow a Phallus

Images of snake embryos reveal how genes that enhance the growth of limbs are used to grow the phallus for these legless reptiles.

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Some Brain & Workout Supplements Contain Unapproved Drugs

Some supplements marketed as brain boosters and workout enhancers contain prescription drugs that are not approved in the United States, a new study says.

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Over-the-Counter Naloxone Is 'a Great Thing,' Docs Say

The overdose drug naloxone may be coming to a pharmacy near you.

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Futuristic-Looking Solar Cars to Race Through Australian Outback

This fall, about 50 teams from around the world will take part in a competition in Australia to prove that their specially designed solar-powered cars have what it takes to survive the Outback.

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50 Graves Uncovered at Medieval Pilgrimage Site in England

The skeletal remains of about 50 medieval individuals have been discovered in shallow graves near the pilgrimage site of a famous seventh-century saint in England.

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Photos: Medieval Skeletons Unearthed Near Saint's Tomb in England

Archeologists unearthed about 50 shallow medieval graves near a 12th-century cathedral in England.

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