Fun with Quizzes

Are you a Cetacean expert?

Instructions
To pass the test you must answer correctly at least 7 questions out of 10. For each question, one or more answers can be correct and you need to select all the correct options to score a point. Test evaluation is immediate and does not require you to provide any personal data.

1.

The so-called melon in Odontoceti plays a crucial role in:

Focusing the sounds used in echolocation

Excreting

Feeding

Mating

2.

Who is the current record holder for deep diving among Marine Mammals?

Blue whale

Sperm whale

Elephant Seal

Cuvier's beaked whale

3.

What baleen whales are mostly seen in Peninsula Valdes (Argentina)?

Orcas, which hunt seal and sea lion pups right up the beach

Southern Right whales

Blue whales

None of the above

4.

The reason(s) why cetaceans look more like fish than land mammals is (are):

Interspecific breeding

By coincidence

Convergent evolution

Divergent involution

5.

Which of the following assertions about Pilot whales are true?

There are two species, one called short-finned and the other long-finned

Two different species are known, both belonging to the genus Globicephala

Two different species are known, whose distributions rarely overlap

Two different species are known, whose distributions broadly overlap

6.

Strandings of cetaceans can be caused by:

Military sonar systems

Infections and other diseases

Local changes of the Earth's magnetic field

Ancestral desire of cetaceans to come back to land

7.

The Mexican bays and lagoons of San Ignacio, Guerrero Negro and Magdalena are world-famous breeding grounds for:

Humpback whales

Blue whales

Sperm whales

Gray whales

8.

Which of the following baleen whales have typical callosities on its head?

Humpback whale

Right whale

Gray whale

Bryde's whale

9.

Why is a stranded cetacean in a highly life-threatening condition?

Because it cannot breathe

Because its body design was not conceived by Nature to fully cope with gravity out of the water

Because it cannot efficiently dissipate heat on land (overheating)

Because it quickly gets dehydrated and its skin is also sensitive to the ultraviolet radiations of the sun

10.

Some tourists tell you they have seen a mother and calf Gray whale pair in Patagonia:

It could be, but only during the Southern Hemisphere winter

It is impossible, because the Gray whale only inhabits the West coast of South America

It is impossible, because the Gray whale only inhabits the Northern Hemisphere

It is very possible, since the Gray whale is the most sighted cetacean in Patagonia