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This is scientific Americans 60 second science. I'm Jason Goldman.

Coyotes can do really well in some cities.

Los Angeles has always had coyotes,

while the predators are relative newcomers to places like Chicago and New York.

But how much do coyotes rely on human activity for food?

Los Angeles is this really interesting, unique city

in that coyotes occur literally across the gradient.

They're everywhere from downtown Los Angeles

at the stadium where the Dodgers play

and all the way out through into the Santa Monica Mountains and some of the more rural rugged

landscape.

Biologist Rachel Larson, who led a newly published study on coyotes in the LA area.

Now at the University of Iowa, she did this work as a graduate student at California State University in Northridge.

She and her team used two different methods to figure out what coyotes were eating.

First, they worked with citizen scientists

to collect and analyze evidence the animals left behind.

Scott tells you what a coyote had for its most recent meal.

But Scat has really detailed information.

When you look at the hair and the teeth and seeds and bones,

...