Predatory Tortoises and Environmental Impact Quiz

The video discusses two intriguing studies. The first is about a giant tortoise on Frégate Island, Seychelles, caught on video hunting and eating a baby tern, marking the first recorded instance of such behavior. This challenges the notion of tortoises as strict herbivores. The second study examines antibiotic resistance in Scandinavian brown bears, revealing how human antibiotic use has impacted wildlife. The study found that resistance levels increased in the 1950s but decreased after policy changes in the 2000s. These findings highlight the impact of human actions on the environment and the potential for reversing contamination.

What unusual behavior was observed in a giant tortoise on Frégate Island?

• It climbed a tree.

• It built a nest.

• It swam in the ocean.

• It hunted and ate a baby tern.

What is the significance of the tortoise's hunting behavior being caught on video?

• It was the first time a tortoise was seen deliberately hunting prey.

• It was the first time a tortoise was seen in a zoo.

• It was the first time a tortoise was seen eating plants.

• It was the first time a tortoise was seen swimming.

What does the tortoise's posture with neck extended and mouth open indicate?

• It is tired.

• It is curious.

• It is displaying aggressive behavior.

• It is looking for water.

What might the tortoise's behavior on Frégate Island suggest about its past?

• It is a new species.

• It is afraid of birds.

• It has always been a vegetarian.

• It might have hunted before.

Why might some herbivores consume animal-based foods?

• To mark their territory.

• To scare off predators.

• For entertainment.

• To gain additional nutrients like protein and minerals.

What was the focus of the study involving bear dental plaque?

• Tracking bear migration patterns.

• Studying bear diet changes over time.

• Investigating antibiotic-resistant bacteria.

• Analyzing bear communication methods.

What trend was observed in the bears' bacteria starting in the 1950s?

• Decrease in bacteria diversity.

• Increase in antibiotic resistance.

• Increase in bacteria size.

• Decrease in bacteria population.

What does the study of bear dental plaque reveal about human impact?

• Humans have improved wildlife habitats.

• Humans have no impact on wildlife.

• Humans have increased antibiotic resistance in wildlife.

• Humans have decreased wildlife populations.

What change in Sweden helped reduce antibiotic resistance in bears?

• Increase in bear population.

• Reduction in antibiotic use in medicine and agriculture.

• Introduction of new bear species.

• Increased hunting of bears.

What role do museum specimens play in environmental research?

• They help track historical environmental changes.

• They are used to train animals.

• They are sold to fund research.

• They are used for decoration.