Predatory Behavior of Great Diving Beetles

The video explores the life cycle of grass frogs, focusing on their reproduction process in lakeshore caves. It highlights the challenges they face, particularly from predators like the great diving beetle. The beetle uses its powerful jaws and digestive juices to paralyze and consume tadpoles, illustrating the harsh realities of survival in the karst environment.

How do grass frogs ensure the continuation of their species after winter?

• By laying eggs on land

• By spawning in lakes after the water arrives

• By hibernating in trees

• By migrating to warmer regions

What role does the lake play in the life of grass frogs?

• It is a place for hibernation

• It provides both sustenance and threats

• It is a breeding ground for beetles

• It is a source of shelter from predators

What is a notable feature of the great diving beetle larvae?

• It has a harmless appearance

• It is unable to swim

• It is vulnerable to predators

• It feeds on plants

How does the great diving beetle larva capture its prey?

• By luring it with light

• By trapping it in a shell

• By injecting corrosive juices

• By using a sticky web

What happens to the tadpole after the beetle larva's attack?

• It escapes unharmed

• It is paralyzed and dissolved

• It grows into a frog

• It becomes a beetle

What does the predatory behavior of the beetle larva illustrate about life in the karst?

• The ease of survival

• The lack of predators

• The abundance of food

• The high stakes of survival