Wednesday, October 1, 2014
Monday, September 29, 2014
The jaw and teeth of hyena not only gives us insight into its powerful abilities but also gives clues to its ranking within the clan. During a darting one of things we do are dental measurements. We also look for broken or missing teeth during this process. One of the measurements we take is called the occlusal surface. We take this measurement from the PM3 (premolar teeth located between the canine and molar). This surface is the portion of the tooth that receives contact. Low ranking hyenas have larger occlusal surfaces than higher rankers. Lower rankers are more likely to feed on the bones of animals instead of meat and other organs. Since they have a tougher meal to chew their teeth become worn down much more quickly. A powerful jaw is a handy tool when it comes to extracting marrow from the bones of prey.
Friday, September 26, 2014
This is what most of my pictures look like... Sigh!
Also since June, the cubs have grown and gotten fluffy which makes it harder to see their spots and match the photos.
Wednesday, September 24, 2014
|Wildebeest crossing the river in our South clan territory|
The other night at the South clan den, while I was trying to record Slinky and Marten interacting with their cubs, I ended up recording a herd of gnu that were grazing nearby and drowning out the vocalizing moms. Near the end of the clip you can barely hear Slinky groaning into the den to call her cub out of the den over the gnu grunts.
|A wildebeest herd from the air|
Monday, September 22, 2014
|At three months old, Twister was already aggressing on older cubs |
at the communal den.
Photo by Aurelia DeNasha
|Twister sacked out against her older sister, Parcheesi, in late 2011.|
Photo by Eli Strauss
Friday, September 19, 2014
|Packer's dummies outfitted with variously colored |
and sized manes. Photo from the Packer lab.
|Hyenas from the Talek clan warily approach the dummies |
during the mobbing experiments conducted in 2012.
Photo taken by Steph Dloniak.
Wednesday, September 17, 2014
|The infamous Choo|
|Kenna Lehman sporting a hefty poop bag and a can-do attitude!|
|Wilson Kilong thinks poop is just the best thing.|
|Two poops in one obs session? It's my lucky day!|
|Ashlei Tinsley handling hyena excrement with class.|
|Chase O'Neil, aka expert poop collector, does her job.|
|We see a variety of colors like above: pale banana cream pie.|
|A typical sample complete with white hairs from a tasty wildebeest dinner. But look, your expert eyes are right! BONUS: there are worms.|
|Foot-smashing time! Socks with sandals recommended.|
|A researcher with steady hands shoves pieces of the droppings into a tube.|
|This is known as the icing technique. Sometimes a hyena has a soupy poop (hey, we've all been there.) In this case, we cut a hole in the bag and squeeze out the future data. Just like icing a cake.|
So far, I have been lucky enough to see many hyena feces and participate in the collection. Everyday is an adventure here, but even more so when we have to scoop poop into tubes!