Though
normally silent, calves make mewing calls.
Courting bulls may emit a raucous cough. Giraffes
also give alarm snorts, and moaning, snoring
hissing, and flutelike sounds have been reported.
HOW IT MOVES: Giraffe
has two ways to locomote. Walk and gallop.
In galloping it can reach the top speed of
37 mph [60 kph] The giraffe's legs work in
pairs like a running rabbit. To drink, a giraffe
must either straddle or bend its forelegs.
REPRODUCTION:
The Giraffe has babies all year. It has the
most during rainy season. First pregnant in
fourth year, gestation 14 to 14.5 months;
minimum interval hetween calves c. 16 months.
Males begin competing for matings at 7 years
of age. Male's also gains weight with age,
through bone deposition the process that creates
the extra knobs on an old bull's head enabling
a bull to deliver ever heavier blows during
contests. Combat is rare, though, as bulls
from the same area all know their place in
a rank hierarchy established through daily
contests while maturing in bachelor herds.
By the time a female is ready to mate, the
local first male has defeated all lesser rivals
without ever coming to blows or conflict.
OFFSPRING AND MATERNAL CARE: A cow returns
to the same location each time she has calves.
The first week or so a calf lies out half
the day and most of the night, carefully guarded
by its mother. The increased security of a
maternity group guarding calves in a creche
allows a mother to go further and stay away
longer. But calves are rarely left totally
unattended; absent mothers usually return
before dark to suckle their offspring and
stay with them overnight. Although giraffes
are weaned as yearlings and nutritionally
independent at 16 months, the maternal bond
lasts up to 22 months.