84 



BOYS AND GIRLS IN BIOLOGY. 



through the body and ends at the month. Along the 

 ontside of the body yon will often see little buds, which 

 grow and give off other buds, so that the old hydra 

 looks like a regular branching tree (Fig. 86). These 



Fig. 86. 



Old Hydra. 



Feelers, or Tentacles. 

 Old Hydra and Young Ones. 



buds, no doubt, make you think of something you have 

 seen before, the baby-torul,e. Yes, these are the baby- 

 hydr^e. Soon their long fingers, or tentacles, begin 

 to grow, then they loose themselves from the old moth- 

 er-hydra and begin to fish for themselves. There are 



