págs. 2-4
pág. 4
Fellow Traveler: Fifty years ago this month, the U.S.S.R. launched Sputnik 1, the world's first Earth-orbiting artificial satellite. Shocked into action, the U.S. ramped up its space program-and its science education.
págs. 23-44
Lucy Goes Walkabout: The travels of a celebrated fossil highlight the vitality of Ethiopian paleoanthopology.
págs. 26-43
Deep Trouble: Fishermen have been casting their nets into the deep sea after exhausting shallow-water stocks. But adaptations to deepwater living make the fishes there particularly vulnerable to overfishing-and many are now endangered.
Richard L. Haedrich
págs. 28-33
Vampire Slayers of Lake Victoria: African spiders get the jump on blood-filled mosquitoes.
págs. 34-37
What's Good for the Goose: A Wisconsin marsh offers a welcome rest stop to migrating birds.
págs. 38-39
John and AMANDA: A scientific legacy stretches from the core of the Sun to deep beneath Antarctic ice.
págs. 46-47
pág. 50
pág. 56
© 2001-2024 Fundación Dialnet · Todos los derechos reservados