Tuesday, May 15, 2012
What It’s Like to Look for Rattlesnakes
I was lucky to be able to join the eastern massasauga rattlesnake survey team in southeastern Michigan a couple weeks ago, part of Lincoln Park Zoo’s efforts to save the species, which is endangered in Illinois. I arrived excited to search, but as a novice, I was first shown photos to get the “search image” in my mind of what a snake looks like with its cryptic coloration hidden among vegetation. I was also given snake tongs—a pole about 3 feet long with pincers at the end—for picking up any snakes I might find. Then I was off to wander soggy wetlands full of 5-foot-high cattails with my team of fellow searchers, led by Dan Boehm, one of Lincoln Park Zoo’s zoological managers.
Almost immediately upon entering our assigned survey area one of my teammates found a snake! I ran over to see it lying calmly in the sunshine on some fallen cattails. We recorded where the snake was, what it was doing and what kind of vegetation it was near as well as environmental variables, such as temperature, wind speed, humidity and amount of cloud cover. Then we carefully collected the snake, placing it in a pillowcase inside a bucket to take back to the lab for more data collection on the snake itself.
With this first find, we were energized to keep searching for more! After about an hour of searching, searching, searching for a brown-and-black rattlesnake amidst brown cattails and black shadows, I finally found one as well! I was so excited!

My snake was curled up and partially covered by some leaning cattails. As a newbie, I was eager to pick it up with my snake tongs, but it wriggled a little, so Dan assisted me in getting the snake to the pillowcase. I proudly announced to the rest of the survey team over the walkie-talkie that I had found a snake and we’d bring it to the lab soon.
I’m pleased to say I found three rattlesnakes throughout the time we spent in Michigan. It was definitely an enjoyable and satisfying week of helping monitor this eastern massasauga rattlesnake population.
Kristine Schad
Kristine Schad, M.S., is an associate population biologist in Lincoln Park Zoo’s Population Management Center.
Friday, April 20, 2012

Riley the chimpanzee is fascinated with kids and babies. All ages, shapes and sizes…Riley wants to see them. On this warm, sunny day at the Houston Zoo, Riley is enthralled because of the constant stream of brightly clothed youngsters streaming by. He presses himself against the glass, sometimes putting his mouth or hand out as if inviting the kids to play. It’s very different from the general indifference to zoo visitors I often see among other chimpanzees.
Friday, March 30, 2012
Discovery of a New Species of Rabies Virus

The effectiveness of the Lincoln Park Zoo–led effort to eliminate rabies in Serengeti National Park is often measured in rabies sightings in the park’s wild animals. In recent years we’ve reported one case of rabies in a single wild animal—a civet cat—in Serengeti National Park since the vaccination campaign began in 2003. Now, however, we can revise this number downward.
Monday, February 6, 2012
Climbing the Mountain to See Gorillas
To see Rwanda's mountain gorillas, it was well worth climbing through mud so thick it takes the boot right off your foot and plants that prick you and leave welts. All exhaustion was forgotten about when I first saw the apes. All of a sudden you realize you’re surrounded by them! You hear lots of eating and see the trees and shrubs moving as the gorillas rip off leaves and eat them.
Thursday, February 2, 2012

Every year on February 2, we celebrate Groundhog Day. But what are groundhogs, and why do they have their own holiday?
Groundhogs (a.k.a. woodchucks) are medium-sized rodents, typically weighing 7–10 pounds. Common through much of the eastern United States and Canada, they have a brushy tail, mottled brown fur and short legs, which give their movement a characteristic “waddle.” Groundhogs are active during the day and prefer to eat vegetation such as clover, dandelions, alfalfa and garden crops. They dig burrows in which they rest, raise young and hide out from predators. These food preferences and burrowing behavior can often cause conflict with humans.
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