Elephants evolve to not develop tubers after they have hunted them for years and killed hunters, research shows.
Nearly 90 percent of Africa's elephants in Mozambique, the National Park of Gorongos, have been given their livelihood to finance weapons in the country's civil war.
However, about a third of females – a generation born after the war that ended in 1992 – did not develop tusks, show recent data.
Small elephant bones are larger and heavier, but due to increased hunting, hunters have started to focus on women.
Joice Poole, the scientific director of the non-profit organization ElephantVoices, told National Geographic: "In time, with the older population, you will start to get this really higher percentage of female unmanaged women."
Other countries also had a change in the number of corn-growing elephants.
In South Africa, 98 percent of 174 women in the Addon Elephant National Park reportedly did not grow their hips in the early 2000s.
Forging also caused a large amount of rudders to descend in some large areas, such as southern Kenya.
Scientists say elephants with this handicap can change how they behave.
Tails are used to swim water or obtain bark for food, so mammals may go far to find surviving.
But researchers say that changes in lifestyle lifestyles can have greater implications for ecosystems around them.
Ryan Long, an ecologist at the University of Idaho, told National Geographic: "All or all of these behavioral changes can lead to changes in the distribution of elephants throughout the landscape, and these are the wider changes that are most likely to have consequences for the rest of the ecosystem. "
The number of inaccessible elephants showed the lasting effect people had on animals.
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