The alpha female’s pregnancy lasts
about 72 days and she can give birth to up to 19 pups, but more often the
litter size is 7-10 pups. The litter size depends on the size of the female.
The mother stays with the blind, naked pups constantly and is the only one to
nurse them. She is fed regurgitated meat by the rest of the pack. At 3 weeks,
the pups’ eyes open and they start eating regurgitated meat. The pups’ fur,
which is black and white at birth changes to black, white, and tan.
As they mature, the pups are brought
by the pack to the killed prey. They are allowed to eat first until they turn
1, at which time the hierarchy is reorganized. When the female pups have
reached adulthood, they leave the pack to find a different one or to create one
of their own. The male pups upon reaching adulthood, generally stay with the
pack that they were born into. However, if there are more than 3 male pups in a
litter, it is possible that they will leave the pack, too. Once the sisters
find a new pack, the hierarchy is reorganized again.
The survival rate of African wild
pups is only 44 %. The causes of death include disease, vehicles, and lion,
hyena, and other wild dog attacks. There are many organizations working to
increase the survival rate of African wild dogs, but this will be discussed in
a later post on conservation efforts.
Picture from http://www.zooborns.com/.a/6a010535647bf3970b0148c7d35169970c-popup
Other references:
http://www.animalinfo.org/species/carnivor/lycapict.htm#Mortality
http://www.honoluluzoo.org/african_hunting_dog.htm
http://www.kalahari-predator-conservation.com/en/predators/african-wild-dogs
https://www.eriezoo.org/PDFS/Animal%20Fact%20Sheets%20for%20Website/African%20Wild%20Dog.pdf
I wonder what mechanism is at work that allows the identification of age. How do they know that a pup has turned 1 in order to rearrange the hierarchy?
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