Environmental oxygen triggers loss of webbed digits

Free fingers have many obvious advantages on land, such as in locomotion and grasping, while webbed fingers are typical of aquatic or gliding animals. But both amphibians and amniotes—which include mammals, reptiles, and ...

Early in vitro testing for adverse effects on embryos

ETH researchers have combined embryonic cells and liver cells in a new cell culture test. This combination lets them detect adverse effects that new medications may have on embryos early on in the drug development process.

Bizarre 'bristle-jaw' creatures finally placed on tree of life

Chaetognaths, whose name means "bristle-jaw," can be found all over world, swimming in brackish estuaries, tropical seas and above the deep dark ocean floor. Also known as arrow worms, the creatures have been around since ...

Singapore eco-tourism plan sparks squawks of protest

Singapore is creating a vast eco-tourism zone in a bid to bring in more visitors, but environmentalists fear the development will damage natural habitats and are already blaming it for a series of animal deaths.

Why are people religious? A cognitive perspective

The quick and easy answer to why people are religious is that God – in whichever form you believe he/she/they take(s) – is real and people believe because they communicate with it and perceive evidence of its involvement ...

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