Elk and Bison Calving Behavior

As elks migrate back to Yellowstone, they pass through wolf territories. By May, they reach the high plateau, where new grasses and mild temperatures set the stage for a new season. As night falls, female elks prepare to give birth, creating a massive nursery. Calves can stand within hours but remain vulnerable for weeks. Predators sense new opportunities, but must choose their prey carefully. Bison calves are protected by the herd, while elk calves rely on their lack of scent to avoid detection by predators.

What do the Elks pass through as they migrate back to Yellowstone National Park?

• Rivers

• Mountain ranges

• Wolf territories

• Desert territories

By what time do the Elks reach the high plateau in Yellowstone?

• May

• June

• April

• March

What significant event occurs as night falls in Yellowstone?

• The bison gather in herds

• The wolves leave the area

• The females prepare to give birth

• The Elks migrate south

How long does it take for elk calves to run with the herd after birth?

• 1 week

• 2 weeks

• 3 weeks

• 4 weeks

What happens to the landscape of Yellowstone overnight during the calving season?

• It becomes a tourist attraction

• It becomes a desert

• It becomes a hunting ground

• It becomes a massive nursery

What do predators sense with the arrival of new elk calves?

• A new opportunity

• A new territory

• A new threat

• A new ally

Why are bison calves not easy targets for predators?

• They are too fast

• They are protected by the herd

• They are too small

• They are camouflaged

What natural feature provides safety for elk calves from predators?

• Rocks

• Grass

• Water

• Trees

What unique defense do newborn elk calves have against predators?

• Sharp antlers

• Fast running speed

• Lack of scent

• Loud calls

What allows elk mothers to graze while their calves remain safe?

• The mothers' vigilance

• The presence of other animals

• The calves' camouflage

• The calves' ability to run