Here’s something you didn’t learn in school: Ravens are smart birds–they can recognize old friends and enemies (even though they may all look alike to us).
In the April 24th edition of the New York Times, Sindya N. Bhanoo quotes zoologist Markus Bockle as saying, "When it’s a friendly individual, they use a friendly voice. If it’s a bird they don’t like, they try to elongate the vocal track, and the call sounds deeper."
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According to new research, a person’s mere presence in a room can add 37 million bacteria to the air every hour, in the form of material left behind by previous occupants and stirred up from the floor.
Americans spend more than 90% of their time inside. Science Daily quotes environmental engineer Jordan Peccia as saying, "We live in this microbial soup, and a big ingredient is our own microorganisms. Mostly people are re-suspending what’s been deposited before. The floor dust turns out to be the major source of the bacteria that we breathe."
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New research suggests that global warming is causing the cycle of evaporation and rainfall over the oceans to intensify more than scientists had expected, meaning there will be more extreme weather in the coming years. It implies that the water cycle could quicken by as much as 20% later in this century as the planet warms, potentially leading to more droughts and floods.
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At exactly 2:08 in on this car video cam, something strange appears in the sky. It is a narrow vertical object looking nothing like a conventional UFO, but there is no easy way to explain it. Appears to be a genuine unknown.
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