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Re: Origin of flight in birds and bats
This is quite interesting, but...
The ability to flight well ? What does it mean ? Is this about
'maneuvrability', as mentioned previously in the abstract ? Or 'agility'
? If this is the case, what is the definition of agility used here ?
Phylogenetic mapping shows
that neither the ability to fly well nor to echolocate well may have been
basal to bats
Doesn't seem that this is a problem for some bats - see the quadrupedal
*Mystacina tuberculata* from New Zeland. If these bats were able to
re-acquire a quadrupedal walking on ground, why should the opposite be
impossible ? I don't mean that it actually happened, just that such a
scenario should not be discarded so easily.
No outgroups to bats
are or apparently were bipedal; thus the forelimbs of bats could only be
freed to evolve powered fight if they were no longer necessary to standard