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Birds May Use 'Sound Maps' To Navigate Huge Distances   Dung
Beetles Use Cosmic GPS to Find Their Way  When the sun goes
down, dung beetles rely on a galactic source--light from the
Milky Way--to navigate, according to a recent report in Current
Biology. Study co-author Eric Warrant, of Lund University in
Sweden, explains how dung beetles see the starry night sky.  How
Owls Turn Heads  A mystery of the animal kingdom: how do owls
turn their heads 270 degrees without damaging their blood
vessels? At last an answer, published this week in Science.
Fabian de Kok-Mercado and Philippe Gailloud dissected and
x-rayed owls to discover how the birds do the twist.  Salmonella
Undermines Hedgehogs' Cuteness Overload  There have been 20
reports of human salmonella infections linked to pet hedgehogs
recently. Public health officials say people should keep the
animals away from areas where food is prepared and served.  How
Owls Spin Their Heads Without Tearing Art