4 results found.
... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The aye-aye, a percussive forager "The aye-aye, one of the strangest and rarest species of primates in the world, has an equally unusual method of finding food. Zoologists have discovered that it taps wood to locate cavities under the surface. Its skills are so well developed that it can tell holes containing grubs from those that are empty. It is the only mammal known to use such a technique." To improve the efficiency of its "percussive foraging," the aye-aye has evolved huge bat-like ears and a highly elongated middle finger on each hand. This specialized finger does the tapping and the big ears relay the nuances of sound to the brain. So sensitive is this specialized form of sonar that the ayeaye can detect grubs 2 centimeters below the surface of the wood. Once a grub has been located, the aye-aye tears into the wood with its forwardcurving, chisel-like teeth. The incisors are remarkable for a primate, for they keep on growing, just like those of rodents. When the grub-containing chamber has been reached, the long, narrow middle finger is inserted and the grub is retrieved. A neat combination of attributes. What is even more interesting is a comparison of the aye-aye with many of the woodpeckers. Many woodpeckers also employ percussive foraging, have special bills for chiselling, and possess very, spiny tongues for extracting grubs ...
Terms matched: 1 - Score: 334 - 15 May 2017 - URL: /sf077/sf077b09.htm
... which are pinkish, magnesium-aluminum-rich spinels sometimes seen in lunar rocks but not terrestrial rocks or ordinary meteorites. Anorthosite is also present -- a type of rock found on the earth and moon but not ordinary meteorites. The implication is that ALHA 81005 was blasted off the moon by a comet or big meteorite. It escaped the moon's gravitational field, was captured by the earth, and plunged into the Antarctic snows. (Eberhart, J.; "Early Hints at a Moonish Meteorite," Science News, 123:54, 1983.) Comment. Geologically speaking, the ice and snow of Antarctica are fairly recent. This meteorite may then be evidence of recent astronomical catastrophism that might also have affected the earth. Reference. Anomalous meteorites are cataloged in Section AYE in The Sun and Solar System Debris. A descrption of this book is located here . From Science Frontiers #26, MAR-APR 1983 . 1983-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf026/sf026p04.htm
... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology PLIOCENE SCULPTURES OR FREAKS OF NATURE? A PAPER TRAIL FROM ASIA TO THE AMERICAS Astronomy Mercury: the impossible planet Eclipse shadow-band anomalies Biology Supernova theory exploded NO UNKNOWN MONSTERS IN THOSE FIJI UNDERWATER CAVES: NEVERTHELESS, THE MYSTERY DEEPENS DO BIRDS USE GENETIC MAPS DURING MIGRATION? Cooler heads, bigger brains? The aye-aye, a percussive forager identical Geology VALLEYS OF DEATH AND ELEPHANT GRAVEYARDS Anthracite man? METHANE HYDRATE: PAST FRIEND OR FUTURE FOE? The gruyerizaton of switzerland faulting Geophysics CROP CIRCLES: DAISY PATTERNS AND A RED BALL OF LIGHT Hovering ball of fire SOME OLD GEYSERS ARE NOT SO FAITHFUL WATER'S MEMORY OR BENVENISTE STRIKES BACK Physics Drip, drop, drup, dr** ...
Terms matched: 1 - Score: 27 - 15 May 2017 - URL: /sf077/index.htm
... around Elliptical Galaxies AWO6 Ring Galaxies AWO7 Galaxies with Polar Rings of Material AWO8 Disk Galaxies with Warped Edges AWO9 Asymmetrical Galaxies AWO10 Clumpy Galaxies AWO11 Galactic Halos AWO12 Oblateness of Elliptical Galaxies AWO13 Anomalies of Spiral Galaxies AWO14 Origin and Persistence of Double Radio Sources AWO15 Anomalous Gravitational Distortion of Galactic Images AWZ GALACTIC MAGNETIC FIELDS AWZ1 Magnetic-Field Anomalies in Our Galaxy AX PLANET X AXO OBSERVATIONS OF PLANET X AXO1 Visual Observations of Planet X AXO2 Infrared Observations of Planet X AXO3 Radio Observations of Planet X AY METEORS AND METEORITES AYB METEOR AND METEORITE FLUX ANOMALIES AYB1 Stationary Meteor Radiants AYB2 Meteor Rates Correlated with Solar Activity AYB3 Meteor Rates Correlated with Lunar Phase AYB4 Meteorites: Geographical Anomalies AYB5 Meteor and Meteorite Temporal Anomalies AYB6 The Unexpected Abundance of Very Large Meteors AYB7 Clouds and Swarms of Meteors AYB8 Micrometeoroid Loss-Gain Imbalance AYE ANOMALIES IN METEORITE COMPOSITION AND STRUCTURE AYE1 Isotopic and Inorganic Chemical Anomalies AYE2 Organic Compounds in Meteorites AYE3 Unusual Meteorite-Exposure Ages AYE4 Anomalous Formation Ages of Meteorites AYE5 "Sedimentary" Meteorites AYE6 Annihilation-Radiation Events Ascribed to Antimatter Meteorites AYE7 Meteorite Magnetic Anomalies AYE8 The Unexplained Origin(s ) of Chondrules AYE9 The Brownlee Particles AYE10 Lack of Correspondence between Meteorite and Asteroid Compositions AYO METEORS IN FLIGHT AYO1 The Peculiar Green Meteors and Fireballs AYO2 Erratic Meteors AYO3 Atmospheric Debris Resembling Meteors in Flight AYO4 Large Meteorites with Negligible Craters AYO5 Meteor Collisions AYO6 Meteors of Very Long Duration AYO7 Fireball Processions AYO8 Nebulous Meteors AYO9 Rebrightening of Meteor Trails AYO10 Dark Meteor-Like Streaks AYO11 Long, Hollow Cylinders of Meteoric Dust AZ THE ZODIACAL LIGHT AZO IDIOSYNCRACIES OF THE ZODIACAL LIGHT AZO1 Varying Visibility of the Zodiacal Light with Geographic ...
Terms matched: 1 - Score: 5 - 15 May 2017 - URL: /cat-astr.htm