12 Questions
What is the function of the sensory systems mentioned in the text?
To sense the environment and other animals’ behaviour in order to make appropriate decisions
What is the main purpose of vision for river dolphins according to the text?
Close range activities like hunting and social interactions
What is the role of the pad under the eye of dolphins and pinnipeds?
Secrete oil to protect from saltwater
Why do river dolphins have small eyes according to the text?
Visibility may be limited and eyes are used for close range activities
What type of cells in the retina are responsible for low-light and black-and-white vision?
Rods
Which marine mammals have lost their S-cones and rely on rods for vision?
Cetaceans and pinnipeds
Which mammals are dichromats with L-cones for red to green and S-cones for blue to UV?
Most terrestrial mammals
Which adaptation allows some mammals to see better in low-light conditions?
Reflective layer behind the retina (tapetum lucidum)
Which sensory adaptation is used for close range interactions in marine mammals?
Vibrissae
Which mammals are monochromats with no S-cones?
Some nocturnal mammals
Which type of mammals have a reflective layer behind the retina for low-light adaptation?
Marine mammals
Which adaptation allows some marine mammals to maintain hearing underwater?
Conduction of sound through lower jaw
Test your knowledge of marine mammal sensory systems with this quiz. Explore vision, touch, chemoreception, sense of time, echolocation, and more. Ideal for students of marine mammalogy and those interested in marine biology.
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