News
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AnimalsCareful Coots: Do birds count their eggs before they hatch?
A coot may tally the eggs in her nest, a rare example of an animal counting in the wild, suggests a new study.
By Susan Milius -
Health & MedicineProgress Against Dementia: Drug slows Alzheimer’s in severely ill patients
The drug memantine slows the progression of late-stage Alzheimer's disease in patients previously considered untreatable.
By Nathan Seppa -
PaleontologyFamily Meal: Cannibal dinosaur known by its bones
Analyses of the gnaw marks on bones of Majungatholus atopus, a carnivorous dinosaur from Madagascar, indicate that the creatures routinely fed on members of their own species.
By Sid Perkins -
PaleontologyFossils of early salamanders found
A recent discovery of fossilized salamanders pushes back a milestone in amphibian evolution by more than 100 million years.