
Afrikaans Gevlekte Hiëna
Zulu Mpisi Shangaan Mhisi Shona Bere |
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Tracks
F 8 cm
H 6 cm |
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Distribution |
Dung
4-8 cm
Green when fresh but turns white
with age due to high bone content
Deposited in middens |
Description
A large carnivore resembling a large, heavily built dog with a sloping back.
Coat background is cream to light brown with irregular dark
spots. The muzzle is black. The tail has a bushy, black tip. The head is massive
and the jaws extremely powerful. The ears are rounded as opposed to the ears of
the brown hyena which are pointed. The limbs are
strongly built with the front legs longer than the hind.
The
forequarters are more heavily built than the hindquarters and gives a sloping outline to the
back. The hair is short and somewhat woolly whereas the hair is long and coarse in
brown hyenas. The coat becomes sparse with age. Females have a fat-filled pseudoscrotum and the clitoris is
erectile and the same
size and almost the same shape as a male's penis looking remarkably similar to the males', resulting in the mistaken belief that hyenas
are hermaphrodite. Average total length 1,6m,
tail 25cm, shoulder height 80cm. Average weight of males is 60kg, females 70kg
Visible Male/Female Differences
Females are dominant and larger than males and a female's belly slopes less sharply upwards than a
male's. Lactating females have one pair of prominent mammae between their hind
legs. The females' pseudoscrotum is less deeply lobed than the male's scrotum.
The erectile clitoris of the female has no neck and the tip is blunt, while the male's penis has a narrow
neck
and a pointed tip.
Habitat and Distribution
A wide range of habitats, excluding dense forest and desert.
Diet
The staple diet is medium-sized and large antelope such as blue
wildebeest, gemsbok,
zebra and impala. Also scavenges and takes smaller mammals,
mice, birds, reptiles,
fruit, eggs and insects.
Reproduction
Litters of 1-2 are born at any time of year after a gestation of 90 days. Cubs are born with eyes open
and teeth well developed, and if both are the same sex and if both are females they fight
savagely. If both are females one of the twins kills her
sister. Weaning begins at 9 months, and is complete by 12-16 months. Cubs first accompany
adults on the hunt at 6-9 months. Permanent teeth are
erupted by 15 months. Both sexes are sexually mature at 3 years. Males are full-grown at 30
months and
females at 36 months. All the females in a clan breed. Their cubs den together but each female suckles only
her own; a female suckling another's cubs has been recorded only once. Cubs are not
provided with meat. Lions kill spotted
hyenas but rarely eat them.
Behavior and Habits
Active at night, spotted hyenas travel as much as 70 km. Often seen during the day resting
in shade or lying in shallow water; uses caves, aardvark holes and drain culverts as dens.
Highly social, they live in a matriarchal clan wh
ich is territorial varying in
size up to 1 800 km. Separate dominance
hierarchies exist among males and females, and females dominate all males. High-ranking females
have first access to food and to resting sites near the den entrance. They also rear
more cubs than low-ranking females. High-ranking males have priority of access to females. Males
integrate themselves into new clans by months of persistent submissiveness and grovelling
to females. Neighbouring clans fight to defend their areas. Territories are
patrolled by groups of residents and are demarcated by anal gland scent marks and middens
containing large accumulations of white faeces.
Spotted hyena hunt by running down their prey at speeds of up to 60 km/h over
distances of up to 3 km. They kill by disembowelling the prey and biting major blood
vessels. Hunting group size depends on intended prey: normally springbok and
springhares
are hunted by single hyenas, wildebeest by groups of three,
eland and adult gemsbok by
groups of four. Carrion is detected by smell from as far as 4,2 km downwind. Live prey is
detected by sight and sound. The sound of other predators feeding attracts spotted
hyenas from up to 10 km away. Normally lions cannot be displaced from a carcass
unless they are outnumbered four to one or if an adult male
lion is present. Lions
will steal carcasses from spotted hyenas. Excess food is occasionally cached, often
in shallow water.
Sounds
The most distinctive call is a drawn out 'whooo-oop', which is a long-range contact
call and assembly signal. Around carcasses, in fights and when attacking lions they scream, giggle, whoop, laugh, low, growl and snarl. Cubs whine for food
and milk.
Dung and Field sign
Dung is 4-8cm long with
tapered ends, dark when very fresh and white when old. Deposited in middens. Spotted hyena dens are less likely than brown hyena dens to have large
accumulations of bones. Scent marks are brown smears which are white when very
fresh on bunches of grass stems. |