Marine Mammals Short

Front

What is a keystone species and why are sea otters considered one?

Back

A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance. Sea otters are considered a keystone species because they help maintain the balance of the ecosystem by preying on sea urchins, which, if left unchecked, can overgraze kelp forests.

Front

What types of sounds do dolphins and whales make?

Back

Dolphins and whales produce a variety of sounds, including clicks, whistles, and songs. These sounds are used for communication, navigation, and hunting.

Front

Do all mammals use lungs for breathing?

Back

True, all mammals use lungs to breathe air, as they are air-breathing animals.

Front

Where do dugongs live?

Back

Dugongs live only in saltwater environments, primarily in warm coastal waters.

Front

Are all mammals carnivores?

Back

False, not all mammals are carnivores. Mammals can be herbivores, carnivores, or omnivores, depending on their dietary habits.

Front

What is the primary diet of sea otters?

Back

Sea otters primarily feed on sea urchins, crabs, clams, and other marine invertebrates.

Front

How do marine mammals adapt to their aquatic environment?

Back

Marine mammals have adaptations such as streamlined bodies, blubber for insulation, and specialized respiratory systems to thrive in aquatic environments.

Front

What role do marine mammals play in their ecosystems?

Back

Marine mammals play various roles, including predator, prey, and scavenger, contributing to the balance of marine ecosystems.

Front

What is the significance of echolocation in dolphins and whales?

Back

Echolocation is a biological sonar used by dolphins and whales to navigate and hunt for prey by emitting sound waves and interpreting the echoes that return.

Front

What are the main threats to marine mammal populations?

Back

Main threats include habitat loss, pollution, climate change, entanglement in fishing gear, and hunting.