Behavior of Japanese tree frogs under microgravity on MIR and in parabolic flight

Details Behavior of Japanese tree frogs under microgravity on MIR and in parabolic flight Behavior of Japanese tree frogs under microgravity on MIR and in parabolic flight

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14..419i&link_type=abstract

Advances in Space Research, Volume 14, Issue 8, p. 419-422.

Physics

Scientific paper

Japanese tree frogs (Hyla japonica) were flown to the space station MIR and spent eight days in orbit during December, 1990/1/. Under microgravity, their postures and behaviors were observed and recorded. On the MIR, floating frogs stretched four legs out, bent their bodies backward and expanded their abdomens. Frogs on a surface often bent their neck backward and walked backwards. This behavior was observed on parabolic flights and resembles the retching behavior of sick frogs on land- a possible indicator of motion sickness. Observations on MIR were carried out twice to investigate the frog's adaptation to space. The frequency of failure in landing after a jump decreased in the second observation period. After the frogs returned to earth, readaptation processes were observed. The frogs behaved normally as early as 2.5 hours after landing.

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