Ancient Earths Nitrogen Slime | Mexican Wolf Population Growing | Sea Snail Strength

Slimy Microbes May Have Carpeted Earth 3.2 Billion Years Ago A layer of land scum only a cell thick may have covered parts of Earth 3.2 billion years ago, surviving with the help of nitrogen that the slimy microbes pulled from the atmosphere, researchers say.
Some Racing Raindrops Break Their 'Speed Limit' Some raindrops travel faster than they should, say scientists who suggest the superterminal drops may mess with rainfall estimates.
	Mexican Wolf Population Now Tops 100 in US Federal officials counted 109 wild Mexican wolves, or lobos, in the Southwest in 2014, up from 83 in 2013. It's the fifth year in a row the small population has grown in the United States.
	ADHD is the New Normal (Op-Ed) A diagnosis of ADHD can lead to ridicule, but in line with a growing trend to recognize such disorders as part of who we are, neurologist and author Sandra Block developed her latest thriller's lead character as a psychiatrist with the condition.
	Sorry, Spiders: Sea Snails Make Strongest Material on Earth The world's strongest stuff isn't spider silk; it's limpet teeth.
	After Miscarriage | Coping with Pregnancy Loss When a pregnancy ends unexpectedly through a miscarriage, a woman may recover physically long before she heals from it emotionally. Her partner will also need support.