Birds return every spring like clockwork, but where is the clock?
Ball
Gregory F
GF
Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland 21230, USA. gball@jhu.edu
Balthazart
Jacques
J
D025041:Animal Migration / Q000502:physiology*; D000818:Animals; D001683:Biological Clocks / Q000502:physiology*; D001717:Birds / Q000502:physiology*; D001921:Brain / Q000502:physiology*