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Science

Top quotes from Stephen Hawking

The world-famous British theoretical physicist Stephen Hawking, who died on Wednesday at the age of 76, was known as much for his profound and witty comments as his scientific discoveries. Here are some of Hawking's best known quotes:…

Complex plants were first to conquer land: study

Before the first land plants appeared on Earth around half a billion years ago, Earth would have looked recognizable with no grass, trees or even mosses. Up until now, mosses and their relatives the hornworts and liverworts have been…

Pigeons may be smarter than you think.

A study out Monday in the journal Current Biology found that pigeons are able to judge time and space, much the way humans and apes can. The report is the latest to show that so-called lower-order animals such as birds, reptiles and fish…

Science update on climate change: from bad to worse

PARIS: Scientists monitoring the Earth's climate and environment have delivered a cascade of grim news this year, adding a sense of urgency to UN talks on how best to draw down the greenhouse gases that drive global warming. Here is a…