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Visited Milwuakee County Zoo with Judy and JJ to study their hippos -
Happy entering the hippo pool -
Chris cleaning out the hippo pool -
The hippo pool before being used by hippos -
Patty and Puddles entering the hippo pool -
The hippo pool after 24 hours of use by hippos -
The hippos eating their breakfast -
Patty and Puddles -
Amanda unclogging the hippo pool to clean it -
A spitting cobra entering our field camp -
Geemi repairing our water meter housing, with a sledgehammer -
Chris's workshop, building low-cost water sensors in the field -
A large Nile crocodile with a bad wound -
A Nile crocodile eating a wildebeest carcass -
Chris deploying a depth logger built by Yale CEID students -
An automated depth sensor built with students from Yale CEID -
A hippo family in the Mara -
Deploying carcass litterbags into the river -
Geemi holding a nutrient-diffusing substrate array -
The first live Etheria elliptica, a freshwater mussel, we found in the Mara -
The second annual Mara Day, in Mugumu, Tanzania -
The wildebeest migration in the Mara Triangle -
Wildebeest jumping into the Mara River -
Wildebeest being swept downstrea while crossing at a difficult place -
Wildebeest massing at the crossing exit, struggling to get out of the river -
Wildebeest carcasses floating downstream after drowning -
A wildebeest calf stranded on the bank -
Chris counting wildebeest carcasses -
Chris deploying a water quality meter housing designed by Yale CEID students -
Counting carcasses in the Mara River -
Wildebeest carcasses in the Mara River after a drowning event -
Maribou storks in the Mara River -
Maggots floating down the Mara River after a drowning event -
Zebra drinking from a seasonal water source -
Geemi cooking hamburgers over a BioLite grill -
Chris with Mara Conservancy staff after rescuing our water quality meter -
NMK ichthyologists electroshocking for fish in the Mara River -
NMK ichthyologists electroshocking for fish in the Mara River -
Sorting aquatic insects -
A female lion in the Mara -
Hyenas in the Mara -
Maji (water) Camp and Fisi (hyena) Camp -
A Mara Conservancy ranger inspecting a dead fish after a fish kill -
Dead fish after a fish kill in the Mara River -
MSc students from UNESCO-IHE sampling at the Salt Lick -
UNESCO-IHE colleagues sampling in the Mara River -
Chris on the Talek River during a flood -
Cattle crossing in Narok town -
Our benthic sampling tiles... destroyed again! -
A herd of elephants after a river crossing -
David and Amanda overlooking the Rift Valley -
Getting experimental stream parts at the welding shop in Narok -
Emma measuring water for the experimental streams -
Emma and David fixing leaks in the experimental streams -
Celebrating our successful streams with a sundowner -
Chris and David building a dam upstream of a hippo pool -
David, expert dam-builder -
Emma and David on our completed dam -
The whole dam crew -
Breaching the dam -
Checking out the sunset -
Another amazing Kenyan sunset -
Emma and Chris sampling the Olare Orok River -
Riverbank erosion on the Mara at a cattle crossing -
Algal bloom in a seasonal water pocket -
Baby elephant in the Mara Triangle -
Emma measuring optical brighteners in the field -
Collecting hippo feces from the river -
Getting good news about our research funding at the Mara airstrip -
Over 100 hippos in one stretch of river (those aren't rocks!) -
A hippo pool in the Mara River -
The Mara at low flows -
Carcass litterbags in a crocodile-proof cage -
A herd of elephants crossing the Mara River -
Chris collecting black water from a hippo pool on the Ntiaktiak River -
Geemi changing water in the experimental streams -
Sampling the streams at the end of our experiment -
Sampling the streams at the end of our experiment -
Biofilm growth in our experimental streams -
Adding hippo feces to the experimental streams -
Adding black water to the experimental streams -
Checking gillnets with the NMK ichthyologists -
Processing fish on the banks of the Mara -
Chris sampling for aquatic insects in the Mara -
Checking our depth logger at the Governor's Camp boat crossing
May 1, 2014