Exempel på ferret

• Inbreeding and outbreeding depression in the captive propagation of black-footed ferrets.

• Thus, although temperature might explain the differences between tur tles and some mammals (cats and ferrets), other factors must explain other interspecies differences.

• In ferrets reared normally, the decline in the cardinal bias occurred as orientation selectivity increased.

• No study has yet ferreted out data practices that industry declines to divulge.

• Results are shown for two ferrets (squares and circles) from which it proved possible to obtain complete data sets.

• The present results demonstrate that serotonin application evoked hyperpolarizing responses even in 35-week-old ferrets, although the magnitude of this response was smaller than observed in younger animals.

• He showed the heuristic value of such mistakes, by describing the growth of mathematics as a process of systematically ferreting out mistakes in existing and new mathematical proofs and concepts.

• Retinal projections to the pretectum, accessory optic system and superior colliculus in pigmented and albino ferrets.

• Despite this variation, both across the same hemisphere and among individual ferrets, it is possible to recognize consistent features that characterize the distribution of ocular dominance domains in this species.

• We tested this idea by measuring the distribution of cor tical orientation preference and the degree of orientation selectivity in developing normal and dark-reared ferrets using intrinsic signal optical imaging.

• An analysis of orientation and ocular dominance patterns in the visual cor tex of cats and ferrets.

• Optically imaged maps of orientation preference in primary visual cortex of cats and ferrets.

• Therefore, much of what we have learned about cellular mechanisms of visual function and development has come from studies of highly visual carnivores such as cats and ferrets.

• In dark-reared ferrets, an even greater cor tical anisotropy emerged, but angle maps in these animals developed an apparently anomalous overrepresentation of near ver tical orientations.

• 240 turtles than in cats and ferrets.