THE VOICE OF ANIMALS 
19 
and are excited by any particular occurrence, 
such as being barked at by domestic dogs,” 
they produce a cry that “ resembles a number 
of monkeys chattering together, or men con¬ 
versing together when their teeth are chattering 
violently from cold.” 
Equally curious is the third sound the 
animal utters, this being said to resemble the 
second note of the well-known cuckoo’s 
cry. 
The most remarkable sound produced by 
any of the dog tribe, however, is that uttered 
by the spotted or laughing hyena, the beast, 
when in a state of excitement, giving forth a 
sequence of loud yells that have a weird re¬ 
semblance to the boisterous laugh of a human 
being. 
Every one who has visited Zoological Gardens 
will be familiar with the somewhat unpleasant 
and bark-like cry that the sea-lions indulge 
in when they desire to inform their keeper 
that the hour for feeding time is approaching. 
But the creatures are also able to give rise to 
a peculiar gurgling or rattling noise, accom¬ 
panying the performance by shaking their 
heads violently from side to side. 
The late Mr. Lydekker gives a very interest¬ 
ing description of the voice of the sea-bears 
or fur-seals, as those members of the sea-lion 
