The Making of Species 
perfect imitation of Danazs chrysippus, by the 
female of the Hyfolimnas. 
Such resemblances can therefore be effective. 
The cases of mimicry usually quoted include 
very few among mammals, probably, as Beddard 
suggests, because the species of that class are 
relatively few. 
The insectivorous genus 7ufaza is supposed to 
mimic the squirrels, which it much resembles as 
regards form in all respects save the long muzzle ; 
the idea being that squirrels are so active that 
carnivorous animals find it hopeless to pursue 
them. 
On the other hand, there is a squirrel (R/zn0- 
scturus tupaiordes) which is supposed to mimic 
the tupaias! It has a similar long muzzle, 
and the light shoulder-stripe which is a common 
marking in tupaias. But why the squirrel, 
one of the group imitated, should in turn become 
an imitator is not explained. 
The true interpretation of the resemblance is 
probably that both squirrels and tupaias are 
adapted to a life in trees. Like profession begets 
like appearance: the ground-living shrews much 
resemble mice, and the moles find representatives 
in mole-like rodents. 
Another case, however, wherein true mimicry 
may have come into play is that of the South 
American deer (Cervus paludosus) which singu- 
larly resembles in colouration the long-legged 
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