Identifying Marine Mammals and Naturalist Roles

The video tutorial, led by naturalist Jim, guides viewers on identifying marine mammals during whale watching. It covers the differences between seals and sea lions, identifies common and Pacific white-sided dolphins, and explains how to distinguish humpback, gray, and blue whales. The tutorial also demonstrates using field guides and binoculars for effective identification.

What is the primary role of a naturalist as described in the video?

• To train dolphins for entertainment

• To study and share knowledge about the natural world

• To manage marine mammal populations

• To capture marine mammals for research

Which feature distinguishes sea lions from seals?

• Seals can walk on land using their flippers

• Sea lions have long arm flippers and external ears

• Seals have external ears

• Sea lions have shorter arm flippers

What is a key difference between common dolphins and Pacific white-sided dolphins?

• Common dolphins have a rounded dorsal fin

• Pacific white-sided dolphins have a beak-like nose

• Common dolphins have a triangular dorsal fin

• Pacific white-sided dolphins are larger

How can you identify a humpback whale?

• By its absence of a dorsal fin

• By its blue coloration

• By its long pectoral fins and tubercles on the rostrum

• By its small size

What is a distinctive feature of a gray whale?

• It has a very large dorsal fin

• It has a gray color with patchy white spots

• It is completely blue in color

• It has a beak-like nose

Which whale is known for its massive size?

• Orca whale

• Blue whale

• Gray whale

• Humpback whale

What should you do first when using binoculars for whale watching?

• Clean the lenses with water

• Adjust the focus knob

• Look directly at the sun

• Secure the safety strap around your neck

Why is it important to adjust the binoculars to match your eyes?

• To change the color of the lenses

• To prevent them from falling

• To ensure a clear and focused view

• To make them look stylish

What is the purpose of using a field guide during whale watching?

• To record the number of whales seen

• To navigate the boat

• To communicate with other boats

• To compare and identify marine mammals

What is a common method used by naturalists to identify whales from a distance?

• Listening to their songs

• Observing their blows

• Measuring their speed

• Counting their teeth