Balsai's theory is that there are enough differences between animals from different islands that pairing of lizards from different locales will be unproductive, further frustrating many captive breeding attempts.
Therefore, isotopes may be used to determine differences between animals feeding in different areas and on different prey.
In such a case, the environment and genetic effects are partially confounded and the genetic differences between animals in different environments are underestimated.
These differences between animals from different parts of the world are reflected in their life histories, and it is neither possible nor legitimate to speak of the "life history of the snake" unless one speaks of only a single region or species.
No differences between animals with different AD vulnerability receiving PNU, with or without stress, were detected.
In order to analyze the statistical significance of the differences between animals from different periods of epileptogenesis, the medians of mean values were evaluated for SE3H, SE24H, SE4D, and SE7D groups, as well as naive rats and the obtained results are presented in Fig. 4.
However, functional or structural differences between animals kept in different rows and therefore at different light intensities were not observed.
Photoperiod influences circadian clock gene oscillations in insects (Koštál, 2011) and the waveform of circadian oscillations in mice (Ciarleglio et al., 2011), resulting in activity differences between animals raised under different photoperiods.
So what really are the differences between animals and plants?
Because of the differences between animals and humans, it is difficult to extrapolate directly the results of these studies to humans.
Singer's work provoked much vexed discussion of the question of whether the traditional treatment of animals is justified by any "morally relevant" differences between animals and humans.
