The National Park Service says it is concerned about the bison herds' effect on park resources, but the proposed killings have sparked some opposition.
The footage was captured a week after a group of tourists caused another stampede by a river in Lamar Valley.
The woman got off her motorcycle to approach the calf when an adult bison charged at her, witnesses said. The bison caught the woman's belt and jeans on its horn as it violently swung her around.
A woman was gored by a bison in Yellowstone National Park, the second incident of 2020 involving a parkgoer approaching the animals too closely.
The bear attacking the juvenile bison was filmed by local business owner Michael Daus.
First model experiments suggest that by increasing the number of large herbivores in the Arctic, we could slow down permafrost thawing.
Yellowstone bison have started their yearly migration out of Yellowstone. Park officials have said that 600 to 900 animals are due to be removed this winter.
Impact of bison grazing on the national park is so extensive it can be seen from space.
The encounter is just the latest example of Yellowstone visitors placing themselves and others in danger by getting too close to bison in the park.
Bison have injured more people in Yellowstone than any other animal, according to the National Park Service.
Today some 500,000 bison have been restored in over 6,000 locations.
Learning to interact with wildlife is not a part of the standard curriculum at most schools.
There are about 4,900 bison roaming the park.