It may be that researchers were trying to find simple explanations for phenomena that, in nature, have lots of different functions
in different animal groups.
«The strengths of our study are that we have confirmed these results in a
completely different animal group, and that our data comes from wild populations,» she concludes.
«Fossils from classic areas in North America and Europe have been studied for over a century, but there are long - standing questions about
how different animal groups dispersed to other areas that we can't answer using just those fossils,» said Angielczyk.
I never really say if the boy in the story is lost and trying to get back to his «tribe,» or if he was born alone and looking for acceptance
with different animal groups.
The extensive difference between day and night for the gene duplicates opens doors to functional studies of behaviours regulated by light
in different animal groups.
Ironmonger lists 130 other safari parks, aquaria, bird gardens and so on, as well as the 31 described at length; he has sections on
the different animal groups kept in zoos and — extremely useful — a chart showing where all of the 350 different mammalian species and subspecies in British zoos are to be found.