6,896 results
6,896 results for: Bears
- Humans
Beefy hormones: New routes of exposure
On any given day, some 750,000 U.S feedlots are beefing up between 11 million and 14 million head of cattle. The vast majority of these animals will receive muscle-building steroids — hormones they will eventually excrete into the environment. But traditional notions about where those biologically active pollutants end up may need substantial revising, several new studies find.
- Earth
Protected whales found in Japan’s supermarkets
Toothless Asian whales find themselves being protected by fairly toothless regulations.
- Health & Medicine
Herbal supplementation can be an empty gesture
Chemical analyses show some botanical extracts contain little of the plant material they were supposed to possess.
- Health & Medicine
Postmenopausal hormones up cancer risk
Danish researchers weigh in fairly conclusively on the risk of one especially deadly cancer.
- Animals
Megafish Sleuth: No Steve Irwin
There's no reason a scientist can't be an action hero — even if his damsels in distress have fins.
- Earth
Monster stingrays: Field notes from a global wrangler
A megafish biologist shares what he's learning about a rare freshwater species.
- Astronomy
They’re calling Obama the ‘science guy’
Speakers at a science forum offered support for the thesis that researchers have found a big ally in the new president.
- Math
A building of bubbles
Math Trek: The National Aquatics Center in Beijing, newly built for the Olympics, is a glowing cube of bubbles. The mathematics behind it are built around Lord Kelvin's tetrakaidecahedra and the physics of foam.
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Touring the Poles
Hunting for bear leads to uncountable infinities.
- Math
Squaring Circles
Cutting a circle into pieces and reassembling the fragments to form a square is a tricky proposition.
- Health & Medicine
For babies, walking opens a whole new world
Walking and talking are linked as babies develop, anecdote and data show.
