Click on the play button, carefully listen to the passage, and then answer the questions that follow.
1. What family do dolphins belong to?
Cetacean
Dolphins are part of the cetacean family, which also includes whales, indicating their classification within marine mammal groups.
Pinniped
Ursidae
Canidae
2. How do dolphins primarily communicate?
By changing skin color
Through silence
Using a complex system of squeaks, whistles, and clicks
Dolphins communicate with each other through a sophisticated system of squeaks, whistles, and clicks, which facilitates social interaction and plays a crucial role in their navigation and hunting strategies.
Through body language
3. What unique behavior is observed in dolphin social structures?
Migrating individually
Living in isolation
Solitary hunting
Engaging in cooperative hunting and showing altruism
Dolphins living in pods exhibit unique social behaviors such as engaging in cooperative hunting and showing altruism towards injured members, reflecting the complexity and empathy within their social interactions.
4. What cognitive ability demonstrates dolphins' complex brain structure?
Recognizing themselves in mirrors
Dolphins' ability to recognize themselves in mirrors demonstrates a high level of self-awareness, indicating their complex brain structure and cognitive capabilities.
Jumping high out of water
The ability to swim fast
Breathing underwater
5. Why are conservation efforts vital for dolphins?
To ensure their survival amid threats like habitat loss and pollution
Conservation efforts are crucial to ensure the survival of dolphins, who face threats from habitat loss, pollution, and fishing nets, highlighting the need for protection of marine habitats and the species that inhabit them.
