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Bears of the Greater Yellowstone Ecosystem

The black bear is the most common bear species in North America. The Greater Yellowstone Ecosystem is one of very few areas south of Canada where black bears coexist with ____________.
Polar bears
Sun bears
Grizzly bears
True or False: Black bears are never aggressive toward humans.
True
False
Photo by Charlie Lansche - C.M. Lansche Images - http://www.cmlanscheimages.com
 
True or False: Until 1960, Yellowstone National Park visitors were allowed to feed bears from their vehicles.
True
False
Black bears can be which of the following colors?
Black
Brown
Blonde
All of the above
Photo by Charlie Lansche - C.M. Lansche Images - http://www.cmlanscheimages.com
 
Which of the following is a good feature to look for to identify a grizzly bear vs. a black bear?
A shoulder hump
Ears
Facial profile
All of the above
Photo by Charlie Lansche - C.M. Lansche Images - www.cmlanscheimages.com
 
The best way to practice bear safety is to... (Check all that apply)
Make noise while hiking
Store food in a bear-proof container
Carry bear spray
Hike alone
Photo by Charlie Lansche - C.M. Lansche Images - www.cmlanscheimages.com
 
The Grizzly Bear is an "apex predator." What are apex predators?
Animals that have few, if any, predators themselves
Species at the top of the food chain
Species that can be used as an indicator of the overall health of an ecosystem
All of the above
Which of the following are ways that apex predators, like grizzly bears, benefit their ecosystem? (Check all that apply)
Apex predators kill the slow, weak, and dying prey animals, which improves the health (and survival) of the prey population as a whole. For example, if there are a few elk in a population that have diseases, apex predators are more likely to kill these sick animals, preventing the diseases from spreading to the other elk and destroying the whole population.
Apex predators help keep prey species "on their toes" so they constantly move around, which prevents overgrazing. This ensures that plants and grasses can recover and grow back, and continue to provide food for animals for many seasons.
Apex predators keep smaller predator populations in check. This allows the smaller prey species to maintain their healthy population sizes.
What do black bears and grizzly bears eat?
Plants only (herbivorous)
Meat only (carnivorous)
Both plants and meat (omnivorous)
0
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