Science Frontiers
ONLINE
No. 87: May-Jun 1993
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Contents
Archaeology
The 50,000-year-old americans of pedra furada
The zuni enigma
The american discovery of europe!
Astronomy
The earth: a doubly charmed planet
Cosmic soot and organic asteroids
Biology
Fossil feathers fly
Is caddy a mammal?
The uniqueness of human adolescence
Animals attack human technological infrastructure
Late survival of mammoths
Geology
Whence the earth's pulse?
Giant impact-wave deposit along u.s. east coast
Geophysics
The vent glow and "blind" shrimp
Amazons in the sky
The bottle-green icebergs of antarctica
Psychology
Alien abuctions: were they, are they real?
Calculating prodigies, gnats, and smart weapons
