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Selection of Tuskless Elephants

6 minutes 39 seconds

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A herd of elephants. Caption: Some elephant populations seem to be missing their tusks.

Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates. There is a strong natural selection for having tusks; however, Dr. Poole has discovered the proportion of tuskless elephants has increased in some populations. She explains possible reasons for the increase in the number of elephants lacking tusks.

Media Details

Runtime: 6 minutes 39 seconds

Topic: Geography, Science
Subtopic: Africa, Animals, Evolution
Grade/Interest Level: 10 - 12
Standards:

Release Year: 2016
Producer/Distributor: Howard Hughes Medical Institute
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A Black woman wearing a nurse's uniform puts her arm around a Black boy, both smile at the camera.

Crocodile walking into the water. Caption. Birds, insects, and reptiles.

Image of women in colorful attire working and walking in an African village courtyard. They're surrounded by mudbrick buildings. Caption. People said that he was looking for a second wife.

3 people in red, gold, and green headbands sit on horses. Men stand in front of them on both sides. Caption. Selamawit as narrator. Red, gold, and green are the colors of the Ethiopian flag.

Masai boy in red and white shuka looks down at an object held in his fingers. Caption. He tells us that smiling and laughing is for women, not us men.

Tuareg boy smiles broadly and looks slightly off camera. Caption. Another of our Tuareg customs, is wearing blue clothes.

African people in bright pink kaftans and bead necklaces. Caption. New boundaries also pulled together groups.

Text reads, “All About Africa For Kids,” bordered with colorful African art patterns.

Closeup of a wooden Kwanzaa kinara with red, green and black candles. Heap of fruits and vegetables fills background.

Aerial view of mostly bare light brown land with low lying trees. Caption: Termites are extremely territorial