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Algal Neurotoxins Found in Endangered Hawaiian Monk Seals

More than 30 years after 50 critically endangered Hawaiian monk seals ( Monachus schauinslandi ) died of suspected algal toxic poisoning, the presence of ciguatoxins in living seals has finally been confirmed through a new, noninvasive test.

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World Science Festival: The Dark Side of the Universe [Live Stream]

For all we understand about the universe, 96 percent of what’s out there still has scientists in the dark. Astronomical observations have established that familiar matter--atoms--accounts for only 4 percent of the weight of the cosmos.

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iNaturalist.org Global Amphibian Blitz

Citizen scientists observe and record data to census the world's shrinking amphibian population in the name of science and conservation [More]

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Multiple Mutations May Be Common

In a point mutation, a single letter of the genetic code changes to another letter. When a protein gets made from that new code, it’ll be slightly different from usual. But new research finds that it may be fairly common for multiple mutations to happen in DNA simultaneously

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International Panel Calls for Tougher "Stress Tests" of Nuclear Power Safety Systems

A group of nuclear power experts and former regulators from 11 nations, responding to Japan's nuclear disaster, is calling for "stress tests" on the world's reactors to determine their ability to withstand extreme earthquakes, flooding or other natural disasters that strike singly or in combination.

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10 Top Illusions (preview)

A Japanese miner climbs onto the stage, his helmet light bobbing and a pickax slung over his shoulder.

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A Paper-Thin Illusion: Make Your Own Magnetlike Slopes [Slide Show]

With a few supplies and some careful cutting and pasting, you can build the gravity-defying structure that won the 2010 Best Illusion of the Year Contest . Created by Japanese mathematical engineer Kokichi Sugihara, the magnetlike slopes illusion is cleverly designed to make marbles roll "uphill." It's a trick of perspective: The slopes actually tilt downward, but they are supported by leaning columns that look straight when viewed from a specific vantage point. Sugihara discovered the illusion accidentally while feeding 3-D line drawings of "impossible" objects into a computer program designed to interpret them as solid structures

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Congo Bans Plastic Bags to Fight Pollution

BRAZZAVILLE (Reuters) - The Republic of Congo has banned the production, import, sale and use of plastic bags in a move to fight environmental pollution in the Central African nation, government spokesman Bienvenu Okiemy said Thursday. Okiemy said the government adopted a decree following a cabinet meeting Wednesday

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