Tuskless Elephant Natural Selection

What is the main reason for the illegal wildlife trade that threatens elephants?

• • Their large size

• • Their tusks and horns

• • Their skin

• • Their intelligence

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What does the term "megafauna" refer to?

• small animals

• endangered species only

• large animals

• animals that live near water

During which event did the population of elephants in Gorongosa National Park decrease by more than 90%?

• A drought

• A natural disaster

• A new hunting season

• The Mozambican Civil War

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What change was observed in the population of female elephants in Gorongosa National Park after the war?

• An increase in tuskless females

• More elephants with tusks

• More male elephants

• No change at all

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What is the estimated survival rate of tuskless females compared to tusked females?

• Equal

• Two times higher

• More than five times higher

• Two times lower

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What percentage of female offspring born after the war were found to be tuskless?

• 10%

• 18.5%

• 33%

• 50.9%

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1. 
   Which chromosome is believed to be linked to the trait of tusklessness in elephants?

• Y Chromosome

• Z Chromosome

• X Chromosome

• Chromosome 19

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What gene is thought to be related to the development of tusks in elephants?

• AMELX

• DSPP

• HCCS

• FAM115B

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Why is understanding the changes in tusk development important for wildlife conservation?

• It helps in determining the color of elephants.

• It has no real importance.

• It affects the ecosystem and conservation efforts.

• It is mainly for academic purposes.

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What do researchers believe about the inheritance of tuskless traits in female elephants?

• They are randomly occurring traits.

• They are inherited from grandparents.

• They may be linked to the mother

• They cannot be inherited.

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