Question

write down the different ways of data acquisition for
Evolution of tuskless elephants Most African elephants have tusks, but typically about 6% of females in a population will never grow tusks. Adult males are very rarely found without tusks. However, in Gorongosa National Park in Mozambique, 50% of females over 20 years old are tuskless, and 33% of females between 10 and 20 years old are tuskless.

Answer 1

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The oldest elephants wandering Mozambique’s Gorongosa National Park bear the indelible markings of the civil war that gripped the country for 15 years: Many are tuskless. They’re the lone survivors of a conflict that killed about 90 percent of these beleaguered animals, slaughtered for ivory to finance weapons and for meat to feed the fighters.

Hunting gave elephants that didn’t grow tusks a biological advantage in Gorongosa. Recent figures suggest that about a third of younger females—the generation born after the war ended in 1992—never developed tusks. Normally, tusklessness would occur only in about 2 to 4 percent of female African elephants

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