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Notes from kenya
mara hyena research

The crazy things guys do for girls

2/27/2009

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Author: Kate
They pick fights.
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They twist themselves into knots.

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They puff up and strut around.

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They dance (awkwardly).

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They're willing to get down and dirty.

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They help scratch that hard-to-reach itch.

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They even get down on bended knee.

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After all that - if they're lucky - they get the girl.

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Another death in the Happy Zebra Clan

2/17/2009

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Author: Kate

It's sad when any hyena dies.
It's even worse when it's a hyena you're particularly fond of.
It's hardest of all when it's a tiny cub.

Last night, we came upon what originally seemed like an idyllic scene at the Happy Zebra den. Sawtooth - one of my favorite hyenas - was grooming her tiny black cub Neverland, who was born fewer than 20 days ago. The cub, however, wasn’t moving. We could see that his head was covered in blood. After the vigorous bath didn’t breathe life into Neverland, Sawtooth stood over her motionless cub, looking confused. Several minutes later, she lay down in the denhole, just a meter or so from Neverland's body.
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None of the other hyenas at the den seemed to understand why the cub was so very still. Over the next hour, several of them came over to sniff and prod the dead cub. Snapper, a Happy Zebra subadult, even picked Neverland up and carried him around for a while before she lost interest, placing him carefully back where she had found him.

Our necropsy showed that Neverland had died from massive head trauma just an hour or two before we arrived at the den. His entire skull and jaw had been crushed. While adult hyenas have extremely robust skulls, a young cub's skull still has a lot of developing left to do, and is surprisingly fragile.
The most likely scenario? Infanticide by another hyena. It’s brutal, but it happens in many species. When food is a limited resource, any extra mouths to feed mean less nourishment for you and your offspring. One way to deal with such competition is to kill it. It’s hard to know how often infanticide happens among hyenas, and we’ll never find out all the details surrounding Neverland's death.

The sad truth is that fewer than half of all hyena cubs survive to adulthood. We’ve got over fifty cubs here at Serena…let’s hope they can beat those tough odds.

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Baby cheetah

2/13/2009

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Author: Andy Flies
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After spending nearly 8 months in the Mara, I had never seen a baby cheetah. That gets crossed off the list now. No need to say a lot about these pictures. The bottom line is baby cheetahs are cute. Not as cute as baby hyenas, but close.
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Hyenas, by the numbers

2/10/2009

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Author: Kate

Let's face it: we all love fun facts. With these, you can impress your friends and family, or at least procrastinate for a few minutes...

The oldest hyena we’ve studied is K-Butt, who lived for nearly 17.5 years.

The lovable Bailey holds the record for our heaviest hyena, weighing in at a whopping 179 lbs. She was just under 3 feet tall at the shoulder.

Hyenas can run at 40 miles per hour for about 2 miles. For comparison, the fastest human clocked in at just over 27 miles per hour, and that was only for 100 meters. Wimp.

In the longest hyena hunt ever recorded, a hyena chased an eland for nearly 15 miles.

While the average hunting group size is 1.8 hyenas, successful zebra hunts require 10 or more hyenas. The reason? Hyenas need to call in reinforcements against male zebras, who protect their ladies fiercely and have a deadly kick.

Here in the Mara, hyenas kill 95% of the food that they eat. I bet you scavenge a heck of a lot more than 5% of your food.

Their bone-crushing bite force has been estimated at about 9000 newtons (2000 pounds), which roughly equals the force of a big NFL hit.

They have 11 distinctive vocalizations.

They can hear noises from over 6 miles away, and can probably identify odors from a distance of nearly 2 miles.

A mother hyena’s milk contains 15% protein, compared to less than 1% protein in human milk. No wonder hyenas grow up fast and become big bullies!

When erect, a female hyena's pseudopenis may be up to 7 inches long. Enough said.

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Remember, we're talking about spotted hyenas...the other hyena species are strange in their own ways. Most of the info here is from our observations. The rest is from the IUCN Hyaena Specialist Group website and the book The Spotted Hyena by Hans Kruuk. Both are fantastic sources of information for you hyena-philes out there!

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    About

    Notes From Kenya is a blog run by the students in the Holekamp Lab at Michigan State University, College of Natural Science, East Lansing, Michigan, U.S.A.

    You can help support our research by making a donation to the Hyena Research Fund at MSU. Your contributions provide necessary resources for the students and scientists to continue our work. Use the link to make a donation or contact MSU for additional details.

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  • Home
  • Research
    • Spotted Hyena >
      • Hyena Publications
      • Carnivore Conservation
      • Communication
      • Cognition
      • Demography
      • Interspecific Competition and Anti-Predator Behavior
      • Socioendocrinology
      • Project Database
    • Arvicanthis niloticus
    • Belding's Ground Squirrel
    • Benefits of our Research
  • People
    • Kay Holekamp >
      • CV
    • Graduate Students
    • Lab Alumni
    • Lab Staff
  • Prospective Students
  • Courses
    • Study abroad: BEAM
  • About Hyenas
    • Images
  • Contact
  • Donate