6,871 results
6,871 results for: Bears
- 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.
- 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 […]
- 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.
- Health & Medicine
Immune gene linked to prostate cancer
An immune-cell gene plays a role in predisposing men to prostate cancer.
- Paleontology
Mosasaurs were born at sea, not in safe harbors
Newly discovered fossils of prehistoric aquatic reptiles known as mosasaurs suggest that the creatures gave birth in midocean rather than in near-shore sanctuaries as previously suspected.
- 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.
- Math
Random packing of spheres
A new definition of random packing allows a more consistent and mathematically precise approach to characterizing disordered arrangements of identical spheres.
