SCOUTING FOR GIRLS 
Animals Without Backbones 
In general the Invertebrates are animals without a 
backbone; that is, they do not have an internal support- 
ing skeleton of bone, as does the dog or cat. Compared 
with mammals or birds, they are all small, and some 
are so very tiny that they can be seen only with a very 
powerful microscope. Most of them live in the water 
or in mud or sand under the water. Hence the best 
place to get acquainted with them is along the seashore 
or near some lake or stream. 
There are several different groups of Invertebrates 
and between these groups there are greater differences 
SQUID 
Member of same family as Octupus, and is re- 
lated to the Oyster, Has ink bag for protection. 
