FIFTH ANNUAL REPORT. 49 
there has never, save once, been any real fighting, and the bears 
are perfectly friendly with their keepers. 
The only serious disagreement in the Bear Dens was caused by 
the introduction of a very bad-tempered and pugnacious black 
bear cub, which tyrannized over all its cage mates, and made itself 
so generally obnoxious that finally it was deliberately sought out 
for punishment by the large cinnamon bear, who bit it so savagely 
and persistently, in spite of the severe punishment instantly in- 
flicted upon him by the keeper in charge, that eventually it died 
from its injuries. 
For several months the two large polar bears were confined, 
temporarily, in one of the dens rightfully belonging to the griz- 
zlies, in consequence of which they suffered in a peculiar way. 
Being very playful, their antics in the pool, which was too small 
for them, rubbed the hair off their backs, and produced eventually 
a condition which resembled a skin disease. Finding that the 
animals could not be prevented from injuring their backs in their 
temporary den, the construction of their own den, at the north 
end of Rocking Stone Hill, was hurriedly begun, and hastened 
by every means. It was completed and occupied by the polar 
bears on October 6th. From that day the backs of the animals 
began to heal, the hair began to grow, and to-day there is no 
visible sign of their former condition. The Polar Bears’ Den 
is by far the most spacious and the finest of the series, and its situ- 
ation is very picturesque. 
On January 1, 1901, the mammal collections of the Park con- 
tained the following representatives: 
Species. Specimens. 
MAES eee Baca hte, <1 6 -. = 14 17 
PSPCHUOR A rs, 0 ects anicihe 0.2 I 2 
SEE ee ee 4I 66 
ior eee esd bn Lk 18 74 
emetiriiete se. ee Sab. 24 226 
Be Hiditoss sexe is si) 2 Loe a or o 2 3 
Pir stipighis. 3.2 35506 2 4 oe aa 4 iG 
Sseyen Orders’ £25. 2523 106 405 
hecewed (hy; Sift. :-:'3 3 Sass eee II13 specimens. 
REM ASCRY o 2 22 oic'3 2 coe ee eee 315 c= 
Doss) a ee eet en oa nat 28 : 
“cc 
Net gain during year, 62 species, 254 
