Depending on the species, the average life expectancy of a whale can vary between 30 and 90 years.
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15
How can be marine mammals further classified?
Cetaceans, pinnipeds, sirens, carnivores
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What kind of marine mammal has only 10 individuals living in the wild as of 2023?
Vaquita
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What do cetaceans include?
Dolphins and whales
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How many species of dolphins are there?
Approximately 40.
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15
How are sea lions different from seals?
Sea lions have visible outer earlobes, and their hind limbs are mobile.
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15
What is the largest species of dolphin?
Orca
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15
Define marine mammals.
Marine mammals are a group of mammals that have adapted to life in the oceans and seas.
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15
What kind of pinniped is the largest?
Walrus
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What is the largest species of marine mammals?
Blue whale
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What is echolocation?
Some marine mammals, such as dolphins and orcas, use echolocation to send sound waves into their surroundings and listen to their reflections to obtain informat
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20
How do whales sleep?
They sleep by turning off half of their brain, which allows them to continue swimming and breathing.