Imagine you are a tour guide at Yellowstone National Park. A tourist asks you, 'How many visitors does Yellowstone National Park receive each year?'

You are planning a trip to Yellowstone National Park and want to see the most famous geyser there. Which one should you visit?

You are on a wildlife expedition in North America. You come across various mammals. Which one among the following is the largest mammal you could possibly encounter?

Imagine you are a historian studying the wildlife of Yellowstone National Park. Can you recall the year when gray wolves were reintroduced to the park?

You are planning a trip to Yellowstone National Park and want to do some river rafting. Can you identify the river that flows through the park for this activity?

You are planning a trip to Yellowstone National Park and you want to visit the largest thermal feature. Which one should you choose?

During a wildlife tour in Yellowstone National Park, you observe an animal displaying elaborate rutting behavior. Which animal are you most likely observing?

During a wildlife expedition in Yellowstone National Park, you noticed that the bison population was nearly wiped out. Which predator do you think is responsible for this?

Imagine you are a geologist studying the Yellowstone National Park. You need to determine its age. How old is the Yellowstone National Park?