Question 1: What is a notable hunting behaviour of the day octopus (Octopus cyanea)?
A It hunts primarily at night using bioluminescence.
B It casts a false shadow to trick prey/camouflage skills.
C It relies on a group strategy to capture prey.
The day octopus (Octopus cyanea) is known for its clever hunting technique where it creates a false shadow, deceiving crabs and other prey into moving within striking distance. This behaviour showcases its intelligence and adaptability in a competitive underwater environment.
Correct Answer: It casts a false shadow to trick prey/camouflage skills.
Question 2: In which bodies of water is the day octopus predominantly found?
A Mediterranean Sea and Red Sea
B Arctic Ocean and North Sea
C Pacific and Indian Oceans
The day octopus (Octopus cyanea) inhabits tropical and subtropical waters, primarily found across the Pacific and Indian Oceans, ranging from Hawaii to the eastern coast of Africa. This geographical distribution highlights its preference for warm, tropical reefs.
Correct Answer: Pacific and Indian Oceans
Question 3: What is one of the primary threats affecting octopus populations mentioned in the context?
A Natural predation by larger fish
B Habitat destruction due to pollution
C Increased fishing regulations
The text highlights that octopuses, despite their brilliance, are threatened by climate change and pollution. These factors adversely affect their habitats, emphasizing the need for conservation efforts to protect marine environments crucial for their survival.
Correct Answer: Habitat destruction due to pollution