6,775 results
6,775 results for: Bears
- Health & Medicine
Predicting Prostate Cancer’s Moves
To guide treatment decisions in individual cases of prostate cancer, medical researchers are using gene-expression profiling and other novel techniques to develop better predictive markers of how a given tumor will behave.
- Paleontology
Unknown creature made birdlike tracks
Paleontologists have found a multitude of birdlike footprints left by a yet undiscovered creature in rocks more than 60 million years older than Archaeopteryx, the first bird to have left fossils of its body parts.
- Paleontology
Family 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.
- Humans
From the September 6, 1930, issue
alt=”Click to view larger image”> LIONS IN ALASKA Alaska, with its vast herds of caribou, its foxes and beaver, its mountain sheep and goats, and its great bears, black, brown, grizzly, and white, is one of the world’s game paradises; but 100,000 years ago, long before the slow-witted men who inhabited Europe thought to follow […]
- Humans
From the June 14, 1930, issue
WELLAND CANAL Slightly more than a century after the falls and rapids of Niagara were first overcome for water transportation by a canal only 8 feet deep, there has been completed on practically the same site a mammoth structure that will pass giant 600-foot lake grain vessels up and down the 326.5-foot difference in elevation […]
- Humans
From the April 5, 1930, issue
SPARROW-SIZE KINGFISHER The Celebes Wood Kingfisher (Ceycopsis fallax), shown on the cover of this week’s SCIENCE NEWSLETTER, is a bird scarcely as large as an English Sparrow. Similar kingfishers of tiny dimensions are found in various tropical countries. They are hunters as well as fishers and feed on insects and other life as well as […]
- Health & Medicine
Moms’ POPs, Sons’ Problems: Testicular cancer tied to a fetus’ pollutant contact
Women who've had substantial exposure to certain environmental pollutants are more likely than other women to bear sons who develop testicular cancers.
- Humans
From the February 4, 1933, issue
SUPERLATIVE SPLENDOR REVEALED BY EXCAVATIONS IN PERSIA Eastern magnificence that surrounded Persian emperors 2,500 years ago is revealed by excavations at Persepolis. Palaces of the kings are being brought to light there by Dr. Ernest Herzfeld excavating for the Oriental Institute of the University of Chicago. The sculptured walls arouse comparisons with glories of one […]
- Paleontology
Fossils Hint at Who Left Africa First
Fossil skulls found in central Asia date to 1.7 million years ago and may represent the first ancestral human species to have left Africa.
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- Health & Medicine
Immune gene linked to prostate cancer
An immune-cell gene plays a role in predisposing men to prostate cancer.
- Anthropology
Pieces of a Disputed Past: Fossil finds enter row over humanity’s roots
Two new fossil discoveries have fueled scientific debates about the evolutionary status of a pair of species traditionally considered to have been our direct ancestors, Homo habilis and Homo erectus.
