| Spotted
Hyena Facts by David Meisel
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 Latin
Name: Crocuta crocuta
Weight: Males 50 –
60 kg, females 60 – 70kg.
Lifespan:
Both males and females live
20 to 25 years in the wild. In captivity the spotted hyena can live as
long as 40 years.
Sexual differentiation:
At one stage the spotted
hyena was actually classified as a hermaphrodite (to have both male and
female genitals).
The females have higher levels
of testosterone than the males do, resulting in them being larger. They
are also more aggressive. At a glance one could easily mistake a female
for a male, as the genitals of both the sexes are very similar in appearance.
The female has an enlarged clitoris, which she can erect at will, she also
has a fake scrotum that looks similar to that of the male’s scrotum.
Social grouping:
Within a group of hyenas
there are predominately more females than males. The males have a loose
association with the group, often roaming alone or with other males.
Group sizes vary considerably
from area to area. Large clans of spotted hyena may have as many as 70
– 80 related individuals. The females being larger than the males, dominate
with a definite hierarchy between the females.
The alpha female (matriarch)
is normally the oldest and most experienced member of the clan, her young
are of a high ranking at birth and often take over the leadership of the
clan, if old enough and should the matriarch die.
Reproduction:
Females looking to mate,
seek males from neighbouring clans to mate with, thus reducing the chances
of any inbreeding.
After a gestation of about
120 days the female gives birth to 1 or 2 cubs which are hidden in old
abandoned aardvark (antbear) burrows. The cubs, if of the same sex will
often try to kill each other, otherwise known as siblicide. This allows
only the stronger and more dominant cubs to survive. Single cubs also get
more food and thus develop a lot faster. The cubs are totally black in
colour, gradually getting lighter and developing spots as they mature.
The cubs may suckle for
more than a year but are normally weaned by 4 months.
They reach sexual maturity
by 3 years of age.
Diet and Feeding:
Although hyenas scavenge
off other predators such as lion, leopard, cheetah and wild dogs, they
are in actual fact superb hunters.
Instead of speed, spotted
hyenas rely more on stamina and as a group they take turns in running after
their prey over long distances, until the point when the animal exhausts
itself and can’t run fast anymore.
The hyena then grabs hold
of the prey with its powerful jaws, often tearing chunks of flesh off,
resulting in the animal dying from loss of blood and shock.
Bones are no problem for
the hyenas jaws to chew though and make a meal there of.
Habits and Territoriality:
The sizes of spotted hyena
territories vary considerably, from as little as 30 square kilometres to
800 + square kilometres. Factors that influence the territory size are
the availability of food and water as well as pressure from neighbouring
rival clans.
Territory boundaries are
marked by scent glands from the hyena’s anal region. When scent-marking
the spotted hyena bends its hind legs slightly while walking and then smears
a thick paste-like substance onto the grass and sticks.
Encounters between rival
clans often start with an increase in scent-marking and vocalisations such
as whooping. Vocalising acts as a warning signal to the rivals to move
out of the area as well as attracting the attention of the other resident
clan members to make them aware of the intruding hyenas.
If the all warnings are ignored,
a battle between the two clans may begin, often resulting in serious injuries
or even deaths.
Quick Facts:
-Statistically, Spotted
Hyenas are responsible for EATING (NOT KILLING) more people than any other
predator in Africa every year.
-Their jaws are capable
of exerting pressures of up to 800 kg/square inch!
-Another name for the spotted
hyena is the “laughing hyena”.
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About the Author - I am an
ex-game ranger from South Africa. I have 2 awesome blogs packed with information
on all sorts of wildlife in Africa. I also talk about encounters with dangerous
game while doing bush walks. Visit my Blogs to find out more: www.safari-stories.blogspot.com
and www.southafrican-wildlife.blogspot.com |