Invertebrates 
Although the little creatures without backbones 
are very different from those that have backbones, 
yet their ways are no less interesting. They can 
hardly be used as pets in the ordinary sense of the 
word, since they do not learn to recognize persons. 
However, there is no question but that honey-bees 
recognize individuals, and like some much better 
than they do others. 
Although so different from us, and therefore more 
difficult for us to understand, yet many insects and 
their relatives are most interesting to us if we have 
them in cages where we can see their wonderful ways. 
THE CRAYFISH 
4 HIS little creature that haunts the still 
pools along the brook sides, or takes up 
its abode in shallow ponds, seems to 
have a great fascination for children, and 
many a poor crayfish has been brought 
in and placed in a pail of water, and 
given no care, and consequently soon 
died, while it would have been more 
interesting if it could have been intro- 
duced into an aquarium and there fed, 
and its interesting ways observed. 
In their native brooks and haunts, crayfish ‘hide 
beneath sticks and stones, or in caves of their own 
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