Science Columns
Q & A
Caffeine Concerns
By C. CLAIBORNE RAY
In very rare cases, overdoses of caffeine have been fatal. But it would be very hard to ingest enough ordinary coffee — at least 42 cups at a sitting — to kill yourself.
OBSERVATORY
How to Tell Fossil’s Sex? Well, the Egg Is a Clue
By SINDYA N. BHANOO
The fossil of a species of flying reptile that coexisted with dinosaurs is the first female of its kind to be associated with an egg.
OBSERVATORY
Feathering Their Nests In Plastic to Get Ahead
By SINDYA N. BHANOO
Using white plastic to decorate the nest is a black kite’s signal of toughness, researchers say — those that use it the most are better fighters and produce more offspring.
OBSERVATORY
Crops of Bacteria, Farmed by Amoebas
By SINDYA N. BHANOO
Researchers at Rice University say that agricultural tendencies occur in about a third of Dictyostelium discoideum amoebas.
Answering Questions About Antarctica
January 22, 2011
Last Look at Mush Valley
January 21, 2011
High PCB Levels Found in Another N.Y. School
January 24, 2011
A Test Drive for the All-Electric Leaf
January 24, 2011
Industry Group's Self-Depiction Raises Eyebrows
January 24, 2011
Health Columns
CASES
A Young Life Passes, and a Ritual of Birth Begins
By MARK S. LITWIN, M.D.
By circumcising an infant according to Jewish tradition moments after his death, a doctor who also is a mohel provided a moment of normality to a family confronting immense loss.
PERSONAL HEALTH
Long and Short of Calcium and Vitamin D
By JANE E. BRODY
New daily recommendations have many people wondering if they’re getting enough or too much in their diets and supplements.
Post a CommentREALLY?
The Claim: Chia Seeds Can Help You Lose Weight.
By ANAHAD O'CONNOR
Diet books and fitness gurus have been promoting the plant’s seeds as an appetite suppressant, with little evidence to back the claim.
Opinion
DOT EARTH BLOG
NASA's Hansen Presses Obama for a Carbon Cost and Nuclear Push
By ANDREW C. REVKIN
A veteran climate scientist who, as a grandfather, has become a climate campaigner, presses the president to abandon special interests.
WORDPLAY BLOG
Numberplay | Crawling Ants
By PRADEEP MUTALIK
A suite of insight puzzles involving crawling ants.
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