Detroit Zoo officials said Tundra, a 29-year-old female, had been seriously ill on Sunday.
Researchers previously thought great apes had little control over their vocalizations, only making them when they were hungry or excited.
The Indianapolis Zoo is moving the 29-year-old Polar Bear to the Detroit Zoo at the end of June.
The Indianapolis Zoo asked the public to help choose a name by weighing in on its Facebook page.
Zoo staff say both mom and baby are healthy and well.
A community is on high alert due to lead in its drinking water, how the Illinois budget struggle impacts Indiana and an Indy Zoo orangutan is due to give birth.
Sumatran orangutans are critically endangered, and orangutan births in the United States are extremely rare.
The new ticket system bases prices on the projected demand for the day, pushing weekday prices up and weekend prices down.
The Indianapolis Zoo's orangutan center is set to open May 24 and will house eight endangered orangutans.
In our “History Through Headlines” segment, we take a look back at what was making headlines.