I ON ANIMAL LIFE 61 
weeks just as if she had been alive. One 
could hardly help fancying that they were 
mourning her loss, or hoping anxiously for 
her recovery. 
The Communities of Ants are sometimes 
very large, numbering even up to 500,000 
individuals; and it is a lesson to us, that no 
one has ever yet seen a quarrel between any 
two Ants belonging to the same community. 
On the other hand it must be admitted that 
they are in hostility, not only with most other 
insects, including Ants of different species, 
but even with those of the same species if 
belonging to different communities. I have 
over and over again introduced Ants from 
one of my nests into another nest of the same 
species, and they were invariably attacked, 
seized by a leg or an antenna, and dragged 
out. 
It is evident therefore that the Ants of 
each community all recognise one another, 
which is very remarkable. But more than 
this, I several times divided a nest into two 
halves, and found that even after a separation 
of a year and nine months they recognised 
