Yvonne de Jong & Thomas Butynski

Giant Volcano and Its Baboons With Altitude!

Yvonne de Jong and Thomas Butynski are exploring eastern Uganda and western Kenya to study primates, supported by a grant from the National Geographic Society. See what they found on the higher altitudes of Mount Elgon. Baboons (genus name: Papio; ...

10 Beautiful Birds of Prey Sighted in Uganda

Yvonne de Jong and Thomas Butynski are exploring northern Uganda to study primates, but that’s not all they’ve discovered. See what they found when they lifted their eyes to the skies. Beaudouin’s Snake-eagle During our survey of ...

Why Uganda´s Bushfires Aren’t All Bad

During our field surveys to better understand the primate diversity of north-eastern Uganda, we seek the least traveled routes and those areas for which primates have never been surveyed. Our explorations often yield data for species other than primates, and ...

Finding a New Monkey for East Africa

Knowing which animals live where is critical to planning effective conservation. To help set up good programs in Uganda, we set out to confirm whether one particular subspecies of monkey, the Dodinga Hills guereza, was calling this country home. Here’...

Primate Discoveries in Northwest Kenya

In our last blog post (Discoveries From Two Years With Kenya’s Warthogs) we provided an overview of the major findings of our Quest for Kenya’s Desert Warthog. Of course, we collected a considerable amount of information on other ...

Discoveries From Two Years With Kenya’s Warthogs

In December, 2012, we began our quest to better understand one of Africa’s least-known large mammals: the desert warthog (Phacochoerus aethiopicus). Over the following two years we shared the findings from our project here on the Explorers Journal blog, revealing ...

Wide-Eyed Primates and Wild Warthogs

There are two species of warthog (Kiswahili name ‘ngiri’) and both occur in Kenya; the common warthog (Phacochoerus africanus) and the desert warthog (Phacochoerus aethiopicus). As mentioned in our earlier blogs (e.g., ‘Quest for Kenya´s Desert Warthog‘), our ...

The Creatures of Kenya’s Forgotten Loima Hills

Yvonne de Jong is a National Geographic grantee working with team member Thomas Butynski to track down what may be Africa’s least understood large animal, the Desert Warthog. ——- Turkana is Kenya’s most remote district. Located west of ...

The Creatures of Kenya’s Forgotten Loima Hills

Yvonne de Jong is a National Geographic grantee working with team member Thomas Butynski to track down what may be Africa’s least understood large animal, the Desert Warthog. ——- Turkana is Kenya’s most remote district. Located west of ...

The Creatures of Kenya’s Forgotten Loima Hills

Yvonne de Jong is a National Geographic grantee working with team member Thomas Butynski to track down what may be Africa’s least understood large animal, the Desert Warthog. ——- Turkana is Kenya’s most remote district. Located west of ...

Kenya’s Elusive Patas Monkeys

Yvonne de Jong is a National Geographic grantee working to track down what may be Africa’s least understood large animal, the Desert Warthog. ———- An extremely hot and dusty road leads us northwards along the Kenya-Uganda border. We are ...

Kenya’s Elusive Patas Monkeys

Yvonne de Jong is a National Geographic grantee working to track down what may be Africa’s least understood large animal, the Desert Warthog. ———- An extremely hot and dusty road leads us northwards along the Kenya-Uganda border. We are ...