Monday, June 13, 2016

Phacochoerus africanus

The Common warthog is today's #MammalCrushMonday !!!! A wild member of Suidae, the pig family. Their skulls are most notably identified by two pairs of tusks protruding from their upper and lower jaw. They also have a set of canine teeth that can grow up to 10 inches, which aid the tusks in defense, and digging for food.



Warthogs have an omnivorous diet, and are the only pig species adapted to savanna habitats, eating grasses, roots, fruits, fungi, insects, eggs, and carrion. When foraging for food, they often kneel on their front legs using their snouts to dig for their meal, or for their burrows.





Which brings me to rule #1 of Kenya, don't look down unknown holes. Warthogs often occupy abandoned burrows of aardvarks and like to come barreling out when least expected.

Common predators of the common warthog are humans, lions, leopards, and hyenas. So no, Pumba and Simba were not friends. So, whenever you see a warthog in the wild, you usually just see their tales sticking up like little warning flags as they trot away. (I personally like to imagine they are quite flatulent as they bounce off)
All warthogs have a sebaceous glans which they use to mark their territory. Females tend to stay in their sounder throughout their lives while males leave to find non-genetically related females to mate with. Males typically live alone and join sounders with estrous females during mating season.


Finally, shout-out to my dad, whose spirit animal is 100% Phacochoerus africanus.

Monday, June 6, 2016

Lycaon pictus

Today's #MammalCrushMonday goes to the African wild dog, formerly known as Lycaon pictus, but new genetic information suggests that they actually belong in the genus Canis, and are more closely related to wolves than belonging to their own genera (Lindblad-Toh et. al., p. 816, Figure 10).

Lindblad-Toh et. al., p. 816, Figure 10     
Phylogeny is the classification of living things based on their physical and genetic characteristics. As science becomes more advanced, we are able to target more specific genetic markers, which often lead to the frequent 'editing' of evolutionary trees. It also leads to lots of confusion and debates over 'clumping' species or 'splitting' of genera, which lead to polyphyletic groups and makes a mess. In order to make more accurate hypotheses about evolutionary trees, both genetics and morphology of species should be considered, simple right?





African wild dogs form strong social bonds, with separate male and female dominance hierarchies. Unlike most pack- animals, the females migrate to find other packs while the males are more likely to stay in their groups.




 
  Because of their social behavior, African wild dogs are specialized pack hunters, with the best success rate of any mammal in the order Carnivora. While only 10% of lions hunts end in a kill, while 80% of wild dog hunts end successfully. So, who is the king of the jungle again? They also have a pre-hunt behavior where each dog 'begs' or acts submissive to each other dog in the pack before they move out to hunt.






We were lucky enough to see this pack of wild dogs on our first day out in the field. They are native to Sub-Saharan Africa in savanna and arid zones. They are on the IUCN endangered species list with only 6,600 adults left in 39 sub-populations.








Absolutely amazing animals to observe, but just from the car!

 #MCM #mammalsarefreakingawesome #mammalogy2014 #Africanwilddog


References:

Lindblad-Toh, K., Wade, C. M., Mikkelsen, T. S., Karlsson, E. K., Jaffe, D. B., Kamal, M., ... & Mauceli, E. (2005). Genome sequence, comparative analysis and haplotype structure of the domestic dog. Nature, 438(7069), 803-819.