HIV & AIDS

The geographic origin of AIDS is now known

A study published in Science magazine reveals for the first time where, when and how the world's AIDS pandemic originated. Thanks to a statistical analysis of all the genetic data available on the human immunodeficiency virus ...

Oncology & Cancer

Orangutan's cancer treatment similar to humans

(AP)—Peanut is an 8-year-old orangutan and a star attraction at Miami's Jungle Island. These days she's also got a team of cancer doctors huddling around her, watching as the chemo drip flows into her veins.

Neuroscience

No need to shrink guts to have a larger brain

Brain tissue is a major consumer of energy in the body. If an animal species evolves a larger brain than its ancestors, the increased need for energy can be met by either obtaining additional sources of food or by a trade-off ...

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