How dolphins may become stranded in waters with gently sloping shorelines

The video explains how dolphins use echolocation to detect objects in water. When sound waves hit an object, they bounce back as echoes, which dolphins interpret. However, in areas with gently sloping shorelines, echolocation signals can reflect multiple times off the sea surface and bottom, leading to energy and detail loss, making dolphins vulnerable to stranding.

What is the primary purpose of echolocation for dolphins?

• To navigate through the water

• To communicate with other dolphins

• To detect objects in the water

• To find food

What happens when a dolphin's echolocation signal hits an object?

• The signal is absorbed by the object

• The signal is amplified

• The signal changes frequency

• Some of the signal echoes back

Why are dolphins vulnerable to stranding in certain shorelines?

• Due to lack of food

• Because of high tides

• Because of gently sloping angles

• Due to strong ocean currents

What is a consequence of multiple reflections on echolocation signals?

• Faster signal return

• Loss of energy and detail

• Clearer sound interpretation

• Increased signal strength

How do multiple reflections affect the echolocation signal before it returns to the dolphin?

• They result in a loss of energy and detail

• They make the signal louder

• They cause the signal to change direction

• They enhance the signal clarity